The mass which when hung at the 85cm mark will balance the ruler horizontally is 600 g.
What is the mass that balances the meter rule?
The mass which when hung at the 85cm mark will balance the ruler horizontally is calculated as follows;
( 150 g x 60 cm ) = ( 85 cm - 60 cm) m
( 150 g x 60 cm ) = ( 15 cm) m
where;
m is the mass that will balance the meter rule horizontallyThe mass which when hung at the 85cm mark is calculated as
m = ( 150 g x 60 cm ) / ( 15 cm )
m = 600 g
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an electron is accelerated from rest through a potential difference of 100v and launched into a region of a magnetic field b, the vleocity parallel to the magnetic feild. calculate the magnitude of the force exerted on the electron by the magnetic feild
The magnitude of the force is -9.44 * 10^-13 * B where B is the magnetic field.
The force exerted on a charged particle in a magnetic field is given by the equation:
F = q * v * B
where q is the charge of the particle, v is its velocity, and B is the magnetic field.
Since an electron has a charge of -1.6 x 10^-19 C, the magnitude of the force exerted on it by the magnetic field is:
F = q * v * B = -1.6 x 10^-19 C * v * B
To find the velocity of the electron, we can use the equation for the work
done by an electric field on a charged particle:
W = q * V
where W is the work done, q is the charge of the particle, and V is the potential difference.
Since the work done is equal to the change in kinetic energy of the particle, we have:
W = (1/2) * m * v^2, where m is the mass of the electron
So,
q * V = (1/2) * m * v^2
Solving for v, we get:
v = sqrt(2 * q * V / m)
Plugging in the values, we get:
v = sqrt(2 * -1.6 x 10^-19 C * 100 V / 9.11 x 10^-31 kg) = 5.9 x 10^6 m/s
Finally, the magnitude of the force exerted on the electron by the magnetic field is:
F = q * v * B = -1.6 x 10^-19 C * 5.9 x 10^6 m/s * B = -9.44 * 10^-13 * B
The value of the magnetic field B must be specified in order to find the exact value of the force.
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determine the constant force prequired to cause the 0.5-kg slider to have a speed at position 2. the slider starts from rest at position 1 and the unstretched length of the spring of modulus is 200 mm. neglect friction.
The constant force required to cause the 0.5-kg slider to have a speed at position 2 is proportional to the square root of the product of the modulus of the spring and the mass of the slider, and is directly proportional to the speed of the slider at position 2.
The kinetic energy of the slider at position 2 can be expressed as:
[tex]Ek = 0.5 * m * v^2[/tex]
where m is the mass of the slider and v is its speed at position 2.
[tex]0.5 * k * x^2 = 0.5 * m * v^2[/tex]
[tex]k * x^2 = m * v^2[/tex]
[tex]x = sqrt(m * v^2 / k)[/tex]
The force required to compress the spring by a distance x is equal to:
[tex]F = k * x[/tex]
Substituting the value of x, we get:
[tex]F = k * sqrt(m * v^2 / k)[/tex]
Simplifying this expression, we get:
[tex]F = sqrt(k * m) * v[/tex]
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Two ropes are identical. A wave traveling through the first rope has a frequency of 1. 5 hertz and a wavelength of 6 meters. What is the frequency of a wave in the second rope if its wavelength is 2 meters?(1 point)
3 hertz
9 hertz
4. 5 hertz
1. 5 hertz
(cmmt if u want to be added to a connection acadmy Physics B ig gc)
06255 seconds. 1 second. There are exactly two ropes. The first rope's initial wave has a wavelength of 6 meters and a frequency of 1.5 hertz.
the separation between the corresponding spots of two successive waves is known as the wavelength. Two points or particles that are "corresponding points" are those that have finished the same fractions of their periodic motion and are in the same phase. Ordinarily, the wavelength of transverse waves—those with points vibrating perpendicular to the direction of their advance—is calculated from crest to crest or from trough to trough; for longitudinal waves—those with points vibrating parallel to the direction of their advance—the wavelength is calculated from compression to compression or from rarefaction to rarefaction. The Greek symbol lambda () is commonly used to represent a wave's length. Wavelength is defined as the product of the speed (v) and frequency (f) of a wave train in a given medium.
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answer this please (questions below)
How much KE does the pendulum have at the highest point?
What is the total ME at the highest point?
How much KE does the pendulum have at the lowest point?
What is the mass of the pendulum?
The kinetic energy at the lowest point is 52 J
What is the Kinetic energy?Kinetic energy is the energy an object possesses due to its motion. It is equal to the work done on an object to increase its speed.. It is related to the concept of work, as the amount of work done on an object is equal to the change in its kinetic energy. Kinetic energy is an important concept in many areas of physics.
From the law of the conservation of energy we know that tghe kinetic energy is;
62 J - 10 J
= 52 J
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Rudy spies a trout 9,800 centimeters from his fishing boat, 7 minutes after casting his fishing line into the water. The trout begins to swim at 3,500 centimeters per minute toward the boat. At this velocity, how long will it take the trout to reach the boat?
The directional speed of an item in motion, as measured by a specific unit of time and observed from a certain point of reference, is what is referred to as velocity.
How to define velocity?
It will take the trout 2.8 minutes to reach the boat.
Use the following formula to solve for the time it takes the trout to reach the boat:
time = distance/velocity
distance = 9,800 centimeters (the starting distance between the trout and the boat)
velocity = 3,500 centimeters per minute (the velocity of the trout swimming toward the boat)
put in the values:
time = 9,800 / 3,500
time = 2.8 minutes
So, it will take the trout 2.8 minutes to reach the boat.
The directional speed of an item in motion, as measured by a specific unit of time and observed from a certain point of reference, is what is referred to as velocity. Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is traveling along a path. In other words, velocity is a vector, whereas speed is a scalar value. Since it is a vector quantity, the definition of velocity requires both magnitude (speed) and direction.
We can say that forces produce changes in velocity because they alter an object's speed or direction. Keep in mind that acceleration is a modification of velocity.
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can I have some help on this, please? I want to put in the box's i just don't know the answer to the question.
The action or do is the cause or applied force while the reaction is the after effect of the applied force.
What is Newton's third law of motion?
Newton's Third Law of Motion states: "For every action, there is an equal and opposite reaction." This means that if an object A exerts a force on object B, then object B will exert an equal and opposite force back on object A.
Examples of Newton's Third Law of Motion include:
Kicking a ball: the kicking of the ball is the action and the ball's motion is the reactionSwimming: When a swimmer moves their arms and legs, they push against the water and the water pushes back with an equal and opposite force.Flying a kite: When the wind blows on a kite, the kite exerts an equal and opposite force on the wind, causing the kite to fly.Learn more about Newton's third law of motion here: https://brainly.com/question/25998091
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Explanation:
please make me brainalist and keep smilinga police officer spots a speeding car traveling at 30 m/s as it passes. the officer immediately starts to drive, accelerating from rest at a rate of 6 m/s2. how far will the officer have to drive before catching up to the speeding car?
A 30 m/s fast automobile is spotted by a police officer as it travel. The police officer will have to drive a distance of 450 meters to catch up to the speedy car.
To determine the distance the police officer must drive to catch up to the speeding car, we can use the concept of relative velocity. The relative velocity of the police officer with respect to the speeding car while its travel is given by:
= v rel.
= [tex]v_o_f_f_i_c_e_r - v_s_p_e_e_d_e_r[/tex]
here,
v officer is the velocity of the police officer
v speeder is the velocity of the speeding car.
Since, the police officer is accelerating, we need to determine the velocity of the police officer as a function of time.
= v officer
= a * t
here,
a is the acceleration of the police officer
t is the time elapsed since the officer started driving.
We want to find the time t when the relative velocity is zero, meaning that the police officer has caught up to the speedy car.
= 0
= a * t - v speeder
Solving for t:
= t
= [tex]v_s_p_e_e_d_e_r / a[/tex]
Now that we have the time t,
= d
= [tex]v_o_f_f_i_c_e_r * t[/tex]
= [tex]a * t^2 / 2[/tex]
Replacing t from the previous equation:
= d
= [tex]a * (v_s_p_e_e_d_e_r / a)^2 / 2[/tex]
Replacing the values of
=> a = 6 m/s²
=> [tex]v_s_p_e_e_d_e_r[/tex] = 30 m/s:-
= d
= 6 * (30÷6)² / 2
= 450 m
So, the police officer will have to drive a distance of 450 meters to catch up to the speedy car.
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the angular resolution of a telescope is never smaller than its diffraction limit. group of answer choices true false
The statement given is true. The angular resolution of a telescope is never less than its diffraction limit.
The larger telescope will always have the higher spectral resolution than the smaller telescope while observing at the same wavelength. The angular resolution of a telescope is at no time smaller than its diffraction limit.
Generally, many telescopes are devices that gather all the light within some aperture of diameter d and bring it to a focus. The limit to the angular resolution of a telescope is settled by diffraction. The angular resolving power or the resolution of a telescope is the smallest angle among the close objects which can be seen clearly to be separate.
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water in a tank is at the pressure of 5.5 mpa and temperature of 260oc. the saturation pressure at the same temperature is 4.69 mpa. what is the phase of water?
The water in the tank has become superheated and is in the vapour phase.
Water has a saturation pressure of 4.69 MPa at 260°C. The water pressure in the tank is 5.5 MPa, which is larger than the saturation pressure. So, the water in the tank has become superheated.
Superheated water is water that is in the vapour phase but at a temperature greater than its typical boiling point. This can happen when water is heated at a continuous pressure higher than the saturation pressure for that temperature. Despite being beyond the typical boiling point, the water molecules in this state have a lot of energy and are not condensing into a liquid.
Understanding the phase of water in a given circumstance is critical in a variety of engineering and scientific applications. Understanding the phase of water in a steam turbine, for example, is critical for effective operation and minimising equipment damage in power plants. Understanding the phase of water in food preparation can effect the quality and preservation of the product.
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Lyza’s team is pulling against Paxton’s team in tug of war. Both teams are pulling on the rope, but the rope is not moving. What statement best describes the forces acting on the rope?
The statement that would best describe the forces acting on the rope is that forces are in equilibrium.
What is equilibrium force?
Equilibrium force refers to a state in which the net force acting on an object is zero, meaning the object is either at rest or moving at a constant velocity.
This means that the sum of all forces acting on an object is equal to zero and there is no net acceleration. The object is said to be in a state of mechanical equilibrium.
So if both teams are pulling on the rope, but the rope is not moving, it simply means that the rope is in equilibrium, that is all the forces are equal.
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What is the momentum of a 2kg mass moving at 25 m/s
The momentum of a 2kg mass moving at 25 m/s is 50kgm/s.
How to calculate momentum?Momentum in physics refers to the tendency of a body to maintain its inertial motion.
It is the product of its mass and velocity, or the vector sum of the products of its masses and velocities i.e.
p = mass × velocity
According to this question, a 2kg mass is moving at 25 m/s. The momentum of the body can be calculated as follows:
Momentum = 2kg × 25m/s
Momentum = 50kgm/s
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how much bigger or smaller would the size of the gravitational force of the sun on the earth be if the earth were moved to four times its current distance from the sun?
If the Earth were moved to four times its current distance from sun , then size of gravitational force of Sun on Earth would be 16 times smaller.
The Gravitational Force between two objects is proportional to the product of their masses and inversely proportional to square of distance between them.
It is denoted mathematically as : F = G×(m₁×m₂)/r² ;
where F is = gravitational force, G is = gravitational constant , m₁ and m₂ are the masses of the two objects, and r is = distance between them.
If the Earth were moved to 4 times its current distance from the Sun, the distance between them would increase by a factor of 4,
So, gravitational force will decrease by a factor of = 4² = 16.
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does a neutral hydrogen atom have an attraction for an additional electron
Answer: Yes
Explanation: It has space in its valence shell for an additional electron.
The answer to this question is yes, a neutral hydrogen atom does have an attraction for an additional electron. This attraction arises from the fact that the positively charged proton in the nucleus of the atom attracts negatively charged electrons. When an additional electron is brought near the hydrogen atom, it will be attracted to the positively charged proton in the nucleus. The attraction between the proton and the electron is quantified by Coulomb's law.
Neutral hydrogen atoms consist of a single proton in the nucleus and a single electron in the outer shell. The electron is negatively charged, while the proton is positively charged. Thus, the electron and the proton are attracted to each other by the electromagnetic force, creating a stable neutral atom. The question asks whether the neutral hydrogen atom has an attraction for an additional electron.
Coulomb's law states that the force between two charged particles is proportional to the product of their charges and inversely proportional to the distance between them. In the case of the hydrogen atom, the force between the electron and the proton is given by:
F = kq1q2/r^2
where F is the force, k is Coulomb's constant, q1 is the charge of the electron, q2 is the charge of the proton, and r is the distance between them.
Since the electron has a negative charge and the proton has a positive charge, their product (q1q2) is negative, which means the force between them is attractive. As the distance between the electron and the proton decreases, the force between them increases. Therefore, when an additional electron is brought near the hydrogen atom, it will be attracted to the positively charged proton in the nucleus.
However, there is a limit to how many electrons can be added to a hydrogen atom. When a second electron is added, it will be repelled by the first electron, and the repulsive force between the two electrons will become stronger than the attractive force between the electron and the proton. This means that adding a second electron to a hydrogen atom requires more energy than adding the first electron. In fact, the energy required to add a second electron is so high that it is unlikely to occur under normal conditions. Therefore, a neutral hydrogen atom can attract an additional electron, but it can only form a negative ion with a single additional electron.
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two pans of a balance are 61.8 cm apart. the fulcrum of the balance has been shifted 1.01 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of .
The percentage that is the true weight of the goods being marked up by the shopkeeper is 3.22%
What is mass?In physics, mass is a numerical value of inertia, a basic property of all matter. It generally refers to an object of matter in the universe opposition to change its speed or motion in answer to the force applied to it. Some examples of objects with mass include a table, a sofa, your bed, a baseball, a glass, and even air. The weight of an item defines that it is heavy or light.
Percentage change:
Wd=W′d ′
W( 61.8-1.01 )=W'( 61.8+1.01 )
W60.79=W'62.81
W'=W60.79/62.81
W'=0.9678W.
Now let find the percentage change as:
W-W'÷W 100%
=W-0.9678W÷W 100%
Percentage change=100%-96.78%
Percentage change=3.22%
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B. An object with a mass of 500,000 Kg and an object with a mas of 700.00 k have a force df grantsionalateshor between them that measures 00045N. How far apart are the two objects?
The two objects are approximately 22,201.86 meters apart.
The formula we use to determine the gravitational force between objects is;
F = G * (m1 * m2) / r^2where;
F is the force of gravity, G is the gravitational constant (6.67430 × 10^-11 m^3 kg^-1 s^-2)m1 and m2 refer to the masses of the objects,r refers to the distance between the objects' centers.Rearrange this formula to solve for the distance between the objects, we get;
r = sqrt((G * m1 * m2) / F)Substituting the given values, we get:r = sqrt((6.67430 × 10^-11 m^3 kg^-1 s^-2 * 500000 kg * 700.00 kg) / 0.00045 N)r = 22201860 metersThe two objects are roughly 22,201.86 meters apart, according to the calculation.
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The efficiency of a petrol car engine is 40%. The speed of the car is 9.0 m s−1 when the power developed by the
engine is 20 kW. Calculate how many kilometres the car can go with one litre of petrol when driven at this speed.
The efficiency of a petrol car engine is 40%. The speed of the car is 9.0 m s−1 when the power developed by the engine is 20 kW. the car can go with one liter of petrol when driven at this speed is 9.0 m/s.
The amount of energy in one liter of petrol is 45 MJ. The efficiency of the engine is 40%. Therefore, the amount of energy converted to useful work is 18 MJ. The power developed by the engine is 20 kW. Therefore, the time taken for the car to travel one kilometer is Time = (1 km)/(9.0 m/s) = 111.11 s .
The amount of energy used to travel one kilometer is Energy = (20 kW)(111.11 s) = 2222.2 kJ Therefore, the amount of energy available from one liter of petrol is Energy = (45 MJ)(1000 kJ/MJ) = 45000 kJ The car can travel Distance = (45000 kJ)/(2222.2 kJ/km) = 20.22 km with one liter of petrol when driven at a speed of 9.0 m/s.
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which two release heights would result in a 2:1 ratio in car speeds at the bottom of the hill? a. 10 cm and 15 cm b. 15 cm and 30 cm c. 15 cm and 45 cm d. 15 cm and 60 cm
The ratio of car speeds at the bottom of the slope would be 2:1 for release heights of 15 cm and 60 cm, respectively. Thus, option D is correct.
What is speed and velocity unit?The variable for velocity is also bold because it is a vector, as opposed to the variable for speed, which is italics since it is a scalar quantity.
Gravity continuously accelerates an object (increases its velocity) during free fall until it reaches terminal velocity. In particular, for every second that passes, gravity accelerates a falling item by 9.8 meters per second (m/s).
The rate at which the location of an object shifts in any direction. Speed is measured as the ratio of the distance travelled to the time it took to cover that distance.
Therefore, Similar to speed, velocity is measured in meters per second (m/s), but because it is a vector, you must also take direction into account.
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PLS HELP ASAP THANKS ILL GIVE BRAINLKEST THANKS
Answer:
A. Applied force
B. Normal force
C. Frictional force
D. Gravitational force
Explanation of the forces with examples shown in the diagram:
A. Applied force:- A pushing or pulling force used to move an object. A person or any other object in this situation applies a force to an object. A chair being moved to the opposite side of the room, as an example.
B. Normal force:- This force is applied to a moving object when it comes into contact with a steady object. A normal force is typically applied horizontally between two objects that are in touch. An illustration would be a book on a table or a person leaning against a wall.
C. Frictional force:- Friction is created as an object moves across a surface. Slider or static forces can cause friction. The characteristics of the two interacting surfaces determine friction. A ball rolling on the floor is one example, as is a book sliding over the table.
D. Gravitational force:- This is the force that causes the Earth, the moon, and other extraordinarily large objects to pull other objects toward them. Every object on Earth is subject to gravity, which pulls objects downward and toward the planet's centre.
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an object in shm oscillates with a period of 4.0 s and an amplitude of 10 cm. how long does the object take to move x
An object in SHM oscillates with a period of 4.0 s and an amplitude of 10 cm. The object takes to move is 0.409s.
The time it takes for an object in simple harmonic motion (SHM) to move a certain distance can be calculated using the formula:
x = A sin ωt
where,
t is the time to move a distance x, time period T = 4 s
A is the amplitude of the oscillation
ω is Angular frequency = 2π/T= 1.57 rad/s
Then,
x = A sin ωt
6 = 10 sin(1.57t)
sin(1.57t) = 0.6
1.57 t = 0.6435
t= 0.409s.
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what is the volume of an aluminum ball at 10°c if its volume at 160°c is 300cm3?
The volume of the aluminum ball is 297 cm³.
What is the volume of the aluminum ball?
The volume of an object changes with temperature, according to the law of linear thermal expansion.
The volume of the aluminum ball is calculated as follows;
V = V₀ ( 1 + 3αΔθ )
where;
V₀ is the initial volume of the aluminumα is the coefficient of linear expansion of aluminumV = 300 cm³ ( 1 + 3 x 23 x 10⁻⁶ x (-150 ) )
V = 297 cm³
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can you draw an equipotential surface through a position where the electric field vanishes? select the correct answer and explanation.
No. Calculating the potential is difficult if the electric field disappears. Drawing an equipotential surface in this situation is therefore impossible.
What is the position where the electric field vanishes?Any sort of charge causes an electric field to be associated to a location in space. The strength and direction of the electric field are expressed by the value of E, also referred to as the electric field strength, electric field intensity, or simply the electric field.
The field lines never cross each other. The surface of the charge is parallel to the field lines. The number of field lines and the charge's magnitude are inversely correlated.
Fields at the centre will be equal and opposite because they will have the same charges at the opposite two corners. The centre will have a zero net field.
Therefore, A positive point charge is pointed straight away by the electric field, and a negative point charge is pointed directly in.
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Help please!!!! What is the difference between the type of smog experiences by cities in the eastern United States and that found in Southern California?
Both are dangerous on their own, but as they float through the air in Southern California's sunny climate, the sun bakes them into a new molecule called ozone, better known as smog.
What is Smog?Smog development and infiltration over Los Angeles. haze and air pollution in the entire community.
Burning sulfur-containing fossil fuels, particularly coal, causes sulfurous smog, also referred to as "London smog," which is characterized by a high concentration of sulfur oxides in the atmosphere.
The two primary substances in automotive exhaust are nitrogen oxides, which are created in scorching internal combustion engines, and hydrocarbons, which are derived from gasoline.
Therefore, Both are dangerous on their own, but as they float through the air in Southern California's sunny climate, the sun bakes them into a new molecule called ozone, better known as smog.
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a physical property of some energies that corresponds to the distance between wave peaks(characteristics of light waves. distance between the peaks of consecutive waves)
Wavelength is a physical property of some energies that corresponds to the distance between wave peaks (characteristics of light waves, distance between the peaks of consecutive waves).
The amplitude and wavelength of a wave are two physical properties. Measured from the wave's highest point (peak or crest) to its lowest point, the amplitude of a wave indicates its height (trough). Wavelength is the distance a wave travels between peaks.
A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places (adjacent crests) in the consecutive cycles. This length is typically defined in wireless systems in meters (m), centimeters (cm), or millimeters (mm) (mm). The wavelength is more frequently described in nanometers (nm), which are units of 10-⁹ m, or angstroms (Å), which are units of 10-¹⁰ m, for infrared (IR), visible light (UV), and gamma radiation (γ)
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compare this to the diffraction limit of the hubble space telescope for visible light. why, to be useful, radio telescopes must be much larger than optical telescopes?
Radio telescopes must be larger than optical telescopes because of the longer wavelengths of radio waves, which result in a lower diffraction limit.
The diffraction limit of a telescope is determined by its aperture size, or the diameter of its collecting area. For the Hubble Space Telescope, the diffraction limit for visible light is approximately 0.05 arcseconds. This means that the telescope can resolve structures or details that are separated by at least 0.05 arcseconds of an angle.
On the other hand, radio telescopes are much larger than optical telescopes because radio waves have longer wavelengths than visible light. The diffraction limit of a radio telescope is proportional to the wavelength of the radiation it observes. Because radio wavelengths are much longer than those of visible light, radio telescopes must be much larger in order to achieve the same level of resolution as optical telescopes.
In addition, radio telescopes can detect emissions from much larger structures in space, such as galaxies and clusters of galaxies. These emissions are typically very weak and difficult to detect, so radio telescopes must have a large collecting area in order to detect them.
To sum up, radio telescopes must be larger than optical telescopes because of the longer wavelengths of radio waves, which result in a lower diffraction limit, and the need to detect weak radio emissions from large structures in space.
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while the engine is cranked, a voltmeter placed between positive battery post and the positive post of the starter reads less than .01 volt. the cause of this reading could be .
A voltmeter positioned between the positive thinking requires connection and the positive pin of the starter registers less than.01 volt when the engine is running. This reading's origin could
What is the purpose of a voltmeter?
voltmeter: a device for measuring voltage. The device used to measure the electric differences between two places in an electrical circuit is called a voltmeter. Digital voltmeters utilize an analog-to-digital converter to display voltage as a numerical value; analog voltmeters swing a pointer across a scale in response to the voltage of the circuit.
What kinds of voltmeters are there?
Voltmeter classification or types. We offer a variety of voltmeter kinds, most of them are based on the construction principle. PMMC Voltmeter (Permanent Magnet Moving Coil). Voltmeter for moving iron (MI). Voltmeter of the Electro Dynamometer kind. Voltmeter of the Rectifier Type Voltmeter of the induction kind. Voltmeter of the electrostatic variety.
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how far you can tilt the cup before the cup's center of mass passes over the origin, allowing the cup to fall over.
The maximum angle at which the cup can be tilted without falling over is when the gravitational torque is equal and opposite to the torque produced by the weight of the cup acting on the point of contact with the table.
The maximum angle at which a cup can be tilted before it falls over depends on the ratio of the radius of the base of the cup to its height. If the cup is a uniform circular cylinder, then its center of mass is located at a distance of half the height of the cup from the origin. When the cup is tilted, the gravitational force acting on the cup produces a torque that tends to rotate the cup around the point where it touches the table.
By setting these two torques equal to each other and solving for the maximum angle, we can determine how far the cup can be tilted before it falls over.
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A 93kg fullback, running at 8.2m/s, collided in midair with a 127 kg defensive tackle moving in the opposite direction. Both players end up with zero speed.
Answer:
Explanation:
The collision between the 93kg fullback and the 127kg defensive tackle is an example of an inelastic collision. In an inelastic collision, the total kinetic energy of the system is not conserved as some of the energy is transformed into other forms such as heat or sound. The resulting final speed of both players would be 0m/s, indicating that they have come to a stop after the collision.
A car has a kinetic energy of 4.33 × 10³ J when
traveling at a speed of 23 m/s.
What is its mass?
Answer:
16.37 kg.
Explanation:
The formula for kinetic energy is:
KE = (1/2) * m * v^2
where KE is kinetic energy, m is mass, and v is velocity.
We are given KE = 4.33 × 10³ J and v = 23 m/s.
Plugging these values into the formula, we get:
4.33 × 10³ J = (1/2) * m * (23 m/s)^2
Simplifying and solving for m, we get:
m = 4.33 × 10³ J / [(1/2) * (23 m/s)^2]
m = 4.33 × 10³ J / (0.5 * 529 m^2/s^2)
m = 4.33 × 10³ J / 264.5 J/(kg·m^2/s^2)
m = 16.37 kg
Therefore, the mass of the car is approximately 16.37 kg.
Answer:
Explanation:
The kinetic energy of an object is equivalent to 1/2 times its mass times the square of its velocity. K.E. = 1/2(m)(v^2), m is in kg, and v is in m/s.
4,330J = (1/2)(m)(529)
m = 8,660/529 = 16.37kg
We find this to be a very small mass; but then there is no description of the car proper.
d) would the apparent magnitude of star a increase, decrease,or stay the same, if it were located at a distance of 40 parcescs? what aboutdthe absolute magnitude number? explain your reasoning
Increases it because it pushes it farther away, yet the absolute magnitude stays the same. It causes it to grow since it is being moved further away, but the magnitude in absolute terms remains constant.
What is the magnitude of a star?In terms of physics, magnitude is just “distance or quantity.” It displays an object's size, direction, or motion in absolute or relative terms.
In physics, the term “magnitude of force” refers to the sum of all applied forces. If the star is more than 10 parsecs away, the apparent magnitude will be higher (dimmer) than the absolute magnitude, and m – M will have a positive value.
When all forces are pulling in the same direction, the force becomes stronger. If an object is subjected to a variety of forces acting in different directions.
Therefore, used to indicate the size or scope of something. In physics, the term “magnitude” often refers to a size or amount.
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4. if the plates of a capacitor have different areas, will they acquire the same charge when the capacitor is connected across a battery?
The answer is yes, but the polarity of the will be different from the battery's. Considering that only the common space between the two plates will be taken into account.
A capacitor has the same charge on both plates, right?No charge is stored in capacitors. The imbalanced charge that is stored by capacitors. A capacitor's two plates will each have a charge of one coulomb, thus if one plate has one coulomb of charge and the other has one less, the total charge (added up across both plates) is zero.
What impact does a capacitor's capacitance have on the size of its plates?The capacity to store electric charge is higher on larger plates. In light of this, capacitance rises as plate area does. The electrostatic force generated between the plates is inversely correlated with capacitance.
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