The two cubes have different inertias. The cubes are connected to each other by a spring, and a hammer strikes them in the two ways.
Then, b) the center of mass of the system will move with the same velocity in either case.
About the center of massThe center of mass of an object can be known when the difference is thrown, so there will be a point of the object whose motion is like a parabola. For example, if a base ball bat is thrown, the whole point will move. There is a point whose motion is like the motion of a particle, namely parabolic motion. The tip of the beater, which was initially at the bottom when it was at the peak of the movement, was at the bottom.
The tip rotates. But there is a point on the bat that moves like a particle. This point is called the center of mass.
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an instrument that measures and displays electrical impulses
An instrument capable of measuring and displaying electrical impulses is the Electrocardiogram (EKG). That instrument using electrodes placed on the skin.
In the term of science, Electrocardiography generally can be defined as the process of producing an electrocardiogram, a recording of the heart's electrical activity. Electrocardiography also can be defined as an electrogram of the heart which is a graph of voltage versus time of the electrical activity of the heart using electrodes placed on the skin. The main principle of EKG or Electrocardiogram is by records impulses to show how fast the heart is beating, the rhythm of the heartbeat (steady or irregular), and the strength and timing of the electrical impulses as they move through different parts of the heart.
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What causes certain elements to be pulled into a region of stronger magnetic field?
Most electrons in materials like iron, cobalt, and nickel spin in the same direction. An existing magnet's magnetic field must be entered for a substance that is extraordinarily magnetic to become magnetised.
A magnetic field, a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A force perpendicular to the charge's own velocity and the magnetic field acts on it when the charge is travelling through a magnetic field. The magnetic field of a permanent magnet pulls on ferromagnetic substances like iron and attracts or repels other magnets.
Paramagnets, diamagnetism, and antiferromagnetic are three more magnetic effects, albeit these forces are often so weak that they can only be observed with specialized laboratory equipment. Electric currents, like those utilised in electromagnets, and electric fields that change in time produce magnetic fields that surround magnetised things. Since a magnetic field's direction and strength can change depending on the location, it can be mathematically characterized by a function that assigns a vector to each point in space. This function is known as a vector field.
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Which of the following does not represent a possible explanation for the large negative ΔG'o for ATP hydrolysis?
a. Solvation effects of H20 on ADP and Pi as compared to ATP
b. More total resonance forms for ADP and Pi as compared to ATP alone.
c. Reduction of repulsive charge-charge interactions in ADP as compared to ATP.
d. A large negative change in entropy for the hydrolysis reaction.
The statement: A large change in entropy for the hydrolysis reaction, doesn't represent a possible explanation for the large negative Gibbs free energy for ATP hydrolysis.
The negative value of free energy change is caused by electrostatic repulsions in the reactant.
The forward reaction's low activation energy is an exception among the given options that do not contribute to the large, negative free energy change.
Product resonance forms improve system stability. As a result, the change in free energy becomes more negative.
Ionization stabilises the products formed by the hydrolysis of high-energy compounds. As a result, free energy change becomes more negative.
Solvation reactions improve the product's stability. As a result, this contributes to a large negative free energy change.
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If the mass of the cart was halved the magnitude of the centripetal acceleration of the cart would.
If the mass of the cart was halved the magnitude of the centripetal acceleration of the cart would remain same.
What Is Centripetal Acceleration ?
Centripetal acceleration is a characteristic of an object's motion along a circular path. Centripetal acceleration applies to any item travelling in a circle with an acceleration vector pointing in the direction of the circle's center.
The rate at which tangential velocity changes is known as centripetal acceleration. Centripetal force is defined as the total force that accelerates an item in a circular motion. As we can see, mass has no bearing on an object's centripetal acceleration; as a result, the centripetal acceleration is unaffected by changes in mass.
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A system at a temperature of 20ºC is near another system at a temperature of 60ºC, as shown in the figure. The systems are isolated from the outside world but not from each other.
a. Predict how the thermal energy of each system will change if they are moved so that they touch.
b. Explain why this will happen.
If the two systems are brought into contact, their thermal energy will adjust so that the total thermal energy remains constant and the temperatures of the systems will approach a common value that is somewhere between 20ºC and 60ºC.
b. This happens due to the transfer of heat energy from the higher temperature system to the lower temperature system until both systems reach a common temperature. Heat naturally flows from hot to cold, until the two temperatures are equal. This process is known as thermal equilibrium, and it is driven by the second law of thermodynamics, which states that heat will always flow from hot to cold until a state of thermal equilibrium is reached.
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what is the sign of the charge on the yellow sphere? Positive or negative
The net electric force on the blue sphere has a magnitude F and is directed in the y direction, the sign of the charge on the yellow sphere will be negative.
What is electric force?Electric force is described as the repulsive or attractive interaction between any two charged bodies. Electric force just like any other force, its impact and effects on the given body are described by Newton's laws of motion.
The distance between the two spheres, the magnitude of the charges, and the direction of the force between them would be factors that will help us determine the the sign of the charge on the yellow sphere.
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If both the force that acts on an object and the time of impact are doubled, by how much is the impulse changed? A. the impulse remains the same. B. the impulse is one-fourth original (+4) C. the impulse is quadrupled (x4) D. the impulse is halved (+2) E. the impulse is doubled (x2)
If both the force that acts on object and the time of impact are doubled, then, E. the impulse is doubled (x2).
What happens to impulse when both the force that acts on object and the time of impact are doubled?If both the force that acts on an object and the time of impact are doubled, then the impulse is also doubled. Impulse is defined as the product of force and time, so if both the force and time are doubled, the impulse will also be doubled.
Impulse = Force × Time
So, if Force' = 2 * Force and Time' = 2 * Time, then Impulse' = 2 * Force * 2 * Time = 4 * Force * Time = 4 * Impulse.
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what are the S.I units of K so that the equation Velocity = K × density is dimensionally correct ? Give your answer in terms of the basic units. ( Kg-¹m45-¹)
The S.I units of K so that the equation Velocity = K × density is dimensionally correct is M^-1.L^3.T^-1 [L^3.M^-1.T^-1]
What is an S. I Unit?The most extensively used system of measuring in the world is the International System of Units, sometimes known as the SI system and abbreviated SI in all languages. It is the current version of the metric system.
Attached in this answer is the straightforward solution of the question and this shows the dimensional correctness needed after the equation Velocity = K × density has been solved,.
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Which of the following are not true of covalent electrolytes? (select all that apply) Select all that apply: They contain only covalent bonds. They may contain ions. All soluble covalent compounds are covalent electrolytes. None of the above
The options Not true for covalent electrolytes-
They may contain ions.All soluble covalent compounds are covalent electrolytes.Explain about the covalent electrolytes?Because it is only very faintly ionized—at 25 °C, only two molecules out of every 1 billion ionize—pure water is a relatively poor conductor of electricity.
Hydronium but also hydroxide ions are produced when one water molecule donates a proton to some other water molecule.So because solute molecules interact chemically with solvent to create ions, covalent compound solutions occasionally transmit electricity. For instance, covalent HCl molecules make up the gas known as pure hydrogen chloride. There are no ions in this gas. However, we discover that solution is an exceptionally good conductor when hydrogen chloride is dissolved in water.An important role for the water molecules in the formation of ions is: hydrogen chloride solutions in a variety of different solvents.Thus, the choices Covalent electrolytes can contain ions, therefore this is not necessarily true. Covalent electrolytes are all soluble covalent substances.
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a copper wire that is 3.14 m long with a diameter of 2 cm has an electrical resistance of 10 ohms. if this wire is cut exactly in half (equal lengths), what is the electrical resistance of each wire piece?
The resistance is 20 ohms.
The resistance of a wire is inversely proportional to its cross-sectional area. When the wire is cut in half, the area is also halved.
Therefore, the resistance of each wire piece is double the original resistance:
R = 10 ohms x 2 = 20 ohms
What is resistance?
Resistance is a force that opposes the motion of an object or the flow of an electric current. It is measured in ohms and can be found in electrical and electronic circuits. Resistance is caused by the collisions of electrons with atoms. It can also be caused by the movement of electrons through a material, like a metal wire. Resistance can be decreased by increasing the cross-sectional area of the conductor or by decreasing the resistance of the material. It can also be decreased by decreasing the length of the conductor.
Therefore, resistance is 20 ohms.
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determine vout/vs for a = 36a/a.
The phrase "36a/a" can be written as 36. Consequently, vout/vs = 36. The number 36 is the same as "36a/a". This is so that the phrase becomes 36 * 1, which is equal to 36, since dividing a number by itself
While Vs (Supply voltage) refers to the voltage source supplied to the device or system, Vout (Output voltage) refers to the voltage existing at the output terminals of a device or system. Gain, which is a measurement of how much the output voltage has been amplified or raised in comparison to the input voltage, is the ratio of Vout to Vs. Typically, the gain in electrical circuits is given in decibels (dB). The device's internal components, like as resistors and transistors, may be changed to create the required output voltage for a specific input voltage, which is how the gain is regulated.
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how many m/s is 50 mi/h equivalent to? (1 mi = 1609 m.)
22m/s
What is velocity?The vectorial expression of velocity is the movement in space-time of an object or particle. The metre per second (m/s) is the accepted unit of velocity magnitude (also known as speed). Alternately, the magnitude of velocity can be expressed in centimetres per second (cm/s).Velocity can be defined as the rate at which something moves in a specific direction. as the speed of a car driving north on a highway or the pace at which a rocket takes off. By dividing the amount of time it took the object to go a certain distance by the overall distance, one can calculate the object's initial velocity. Therefore, V is the velocity, d is the distance, and t is the time in the equation V = d/t.
50 miles per hour is equal to 50 (mi/h) x 1609 (m/mi) / 1 (h/3600 s) = (50x1609/3600) m/s.
=22m/s
Use this equation to convert a mile to a metre: mi X 1,609.344= m (miles multiplied by 1,609.344 equals meters). .
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According to the question the m/s is 50 mi/h equivalent to 22m/s
What is velocity?
The vectoral expression of velocity is the movement in space-time of an object or particle. The metre per second (m/s) is the accepted unit of velocity magnitude (also known as speed). Alternately, the magnitude of velocity can be expressed in centimetres per second (cm/s).Velocity can be defined as the rate at which something moves in a specific direction. as the speed of a car driving north on a highway or the pace at which a rocket takes off. By dividing the amount of time it took the object to go a certain distance by the overall distance, one can calculate the object's initial velocity. Therefore, V is the velocity, d is the distance, and t is the time in the equation V = d/t.
50 miles per hour is equal to
50 (mi/h) x 1609 (m/mi) / 1 (h/3600 s) = (50x1609/3600) m/s.
=22m/s
Use this equation to convert a mile to a metre:
mi X 1,609.344= m (miles multiplied by 1,609.344 equals meters). .
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The second step in the Gram staining procedure involves flooding the slide for one minute with
A. safranin.
B. iodine.
C. a decolorizing agent.
D. crystal violet.
There are four fundamental steps in the Gram staining procedure:1. Apply a base color (crystal violet). 2. Adding Gram's iodine as a mordant. 3. Rapid decolorization with acetone, ethanol, or a combination of the two. 4. Using safranin as a counterstain, therefore, option b is the right choice.
A Gram stain is a laboratory test that looks for bacteria in some physiological fluids or at the probable location of an infection. Healthcare personnel may quickly determine whether germs are present and, if so, what type of bacteria they are thanks to the Gram stain, which is processed by a medical laboratory expert (s). Further identification tests and treatment options may be guided by this.
A broad class of single-celled creatures is known as bacteria. They may reside on your skin and in various locations throughout your body. While some bacteria are benign or even helpful, others can lead to illnesses and diseases. Gram stains are used to identify dangerous bacteria.
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The Law of Conservation of Momentum states:answer choicesO The total momentum before a collision is equal to the total momentum after a collision.O The total momentum before a collision is greater than the total momentum after a collision.O The total momentum before a collision is less than the total momentum after a collision.O The total momentum before a collision is not related to the total momentum after a collision.
The Law of Conservation of Momentum states the total momentum before a collision is equal to the total momentum after a collision.
What is the Law of Conservation of Momentum?The Law of Conservation of Momentum states that the total momentum in a closed system before and after the collision is constant.
It means that the total momentum before the collision is equal to the total momentum after the collision. In a closed system, there is no external force acting on the system.
The formula for this law can be expressed as
∑p initial = ∑p final
p₁ + p₂ + ... = p₁' + p₂' + ...
m₁v₁ + m₂v₂ + ... = m₁v₁' + m₂v₂' + ...
Where
∑p initial is momentum before the collision.∑p final is momentum after the collision.Thus, the correct option is A.
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What power is dissipated in the internal resistance of the battery?
The power dissipated in the internal resistance of the battery is equal to the product of the current flowing through the battery and the voltage drop across the internal resistance.
Every battery has an internal resistance, which causes a voltage drop when current flows through the battery. This voltage drop results in a loss of energy in the form of heat, which is known as the power dissipation in the internal resistance of the battery.
The amount of power dissipated in the internal resistance is directly proportional to the current flowing through the battery and the internal resistance. The higher the current and internal resistance, the more power is dissipated, which can reduce the overall efficiency of the battery and shorten its lifespan.
To maximize the efficiency of a battery, it is important to minimize its internal resistance and choose a battery with low internal resistance.
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25. The distance between two successive crests in a wave is 1.5 m, and the source generates 50 crests and 25 troughs in 10.0 s. What is the speed of the waves? Please explain to me, Thank You!
Because the frequencies is the "numbers of waves per second" and the wavelengths is the "distance each wave," multiplying the two results in "distance per second." Dimensional analysis can be used to confirm this.
How can you determine the wave speed?Wave speed and wavelength are related by the wave speed equations (Speed => Wavelength x Frequency). The wave speed can be determined using this equation if the wavelengths and frequency are known. The numbers of waves that travel each second is known as the wave frequency.
What is the wave example's speed?The speed of a sea waves is 3 m/s if the wave's crest covers 30 meters in 10 seconds. In contrast hand, if the ocean wave's peak moves 40 meters in ten seconds, then the wave is moving at a pace of 4 meters per second.
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What is 85 degrees F in degreeC?
Is 85 degrees equal to 29.4444? (85°F x 32) x 5/9 = 29.444°C 29.44 degrees Celsius is equal to 85 degrees Fahrenheit. 85°F can be converted to Celsius using this calculator.
Is 85 F chilly or hot?
Some people may find 85 degrees to be hot, while others may find 90 or 95 to be hot. The "optimal" temperature for people to feel most comfortable, according to numerous research, is 72 degrees.
Is 86 Fahrenheit a warm temperature?
Initial water temperature of 87 to 111 degrees F (31 to 44 degrees C) is considered "warm." d. "Cold," with a starting water temperature of up to 86 degrees Fahrenheit (30 degrees Celsius).
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1. To find the value for the permeability of free space, first convert your slope from gauss units to tesla units by using the following conversion (1 gauss = 10?4 tesla). .00035 teslas
The value for the permeability of free space is 0.00035 tesla.
What is tesla.Tesla is a unit of measurement used to measure the strength of a magnetic field. It is named after the Serbian-American inventor and electrical engineer Nikola Tesla. The tesla is defined as the strength of a magnetic field that will induce an electric current of one ampere in one linear metre of a wire when the field is changing at a rate of one weber per second. This unit is used in a variety of applications such as measuring the strength of magnetic fields produced by electromagnets, measuring the strength of Earth’s magnetic field, and measuring the strength of a magnetic field produced by a superconductor. One tesla is equal to 10,000 gauss, which is the magnetic field strength used to describe the Earth’s magnetic field. Lag free is a term used to describe a system that is not subject to delays or pauses.
To convert from gauss units to tesla units, use the conversion factor of 1 gauss = 10^-4 teslas. Thus, the slope of 0.35 gauss is equivalent to 0.00035 teslas.
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Which of the following statements is false? Net forces act on the car during intervals A and C. The magnitude of the net force acting during interval C is greater than that during A. No net force acts on the car during interval B. Opposing forces may be acting on the car during interval C. Opposing forces may be acting on the car during interval D.
The amount of net force acting on an item is equal to the object's mass times its acceleration. An object is not speeding and is said to be in an equilibrium state if there is zero net force acting on it. Thus, option B is correct.
What magnitude of the net force acting during the interval?The total amount of forces exerted on an object is referred to as its net force. The product of the object's mass and its acceleration gives the amount of net force that is acting on the object.
An object is not speeding and is said to be in an equilibrium state if there is zero net force acting on it. The magnitude of a force is its measurement or intensity. The magnitude of the net force is the resultant force, which is the total of all forces acting on a body.
Therefore, The magnitude of the net force acting during interval C is greater than that during A.
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The amount of net force acting on an item is equal to the object's mass times its acceleration. An object is not speeding and is said to be in an equilibrium state if there is zero net force acting on it. Thus, option B is correct.
What magnitude of the net force acting during the interval?The total amount of forces exerted on an object is referred to as its net force. The product of the object's mass and its acceleration gives the amount of net force that is acting on the object.
An object is not speeding and is said to be in an equilibrium state if there is zero net force acting on it. The magnitude of a force is its measurement or intensity. The magnitude of the net force is the resultant force, which is the total of all forces acting on a body.
Therefore, The magnitude of the net force acting during interval C is greater than that during A.
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A 2kg crate ret on the floor. How much work i required to move it at contant peed 3m a frictionle air table,
When mass and velocity are given the work done is the change in kinetic energy . Here the work done to move the crate will be will be 9 J.
Here a crate of 2 kg is resting on the floor. Work should be done to move the object at a constant speed. When mass and velocity are given, because here the object is attaining kinetic energy, the work done will be the change in kinetic energy.
As the object was at rest, the initial kinetic energy will be 0.
Work done, W = [tex]\frac{1}{2} mv_{2} ^{2} -\frac{1}{2}mv_{1} ^{2}[/tex]
v₁ = 0 , so the second term becomes 0.
W = [tex]\frac{1}{2}mv_{2}^{2}[/tex]
= 1/2 ×2×3² = 9 J.
Since crate is moving on a frictionless surface, we can ignore the frictional force.
So the work done to move a 2 Kg crate over a frictionless surface at a speed of 3m/s is 9 J.
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How do you find the amplitude of a spring in simple harmonic motion?
The amplitude of a spring in simple harmonic motion can be determined by using the following formula:
A = x_max / 2,
where A is the amplitude and x_max is the maximum displacement of the spring from its equilibrium position. The amplitude represents the maximum displacement of the spring from its rest position during one complete cycle of motion.
In simple harmonic motion, the displacement of the spring is proportional to the cosine of the angular frequency times the time elapsed, x(t) = A * cos(ωt), where ω is the angular frequency. By finding the maximum value of x(t), x_max, and dividing it by 2, you can calculate the amplitude, A, of the spring in simple harmonic motion.
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true or false, If the electric field is zero everywhere inside a region of space, the potential must also be zero in that region.
False.However, this does not imply that the potential at each place must be zero. If the electric field is zero in a region of space, the potential difference between any two points inside that region will also be zero.
Although they are connected, the electric potential (or voltage) and the electric field are not the same thing. The electric field is a vector quantity that defines the force acting on a charged particle at a certain place in space, as opposed to the electric potential, which is a scalar variable that explains the amount of energy needed to transfer a charged particle from one point to another.
There is no net force acting on charged particles in a region of space if the electric field is zero everywhere in that region. It does not imply that the potential is also zero, though. Even if there is no electric field, the distribution of charges in the area determines the potential.
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How many watts are in a horsepower?
There are approximately 746 watts in a horsepower. It is a unit of mechanical power, defined as the rate at which work is done.
What is watts in terms of horsepower?
A horsepower is a unit of power commonly used to measure the output of engines or motors. It is a unit of mechanical power, defined as the rate at which work is done.
One horsepower is equivalent to 746 watts, which means that a device that uses one horsepower can perform 746 watt-seconds of work in one second. This unit was originally defined by James Watt in the 18th century and was used to measure the power of steam engines.
Today, the term horsepower is still widely used to describe the power of engines and motors, even though it has largely been replaced by the more scientific unit of watts for precise measurement.
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what force, in newtons, must you exert on the balloon with your hands to create a gauge pressure of 55 cm h2o, if you squeeze on an effective area of 48 cm2? assume the pressure in the balloon is one atmosphere before you squeeze.
A force of approximately 339,872 N to create a gauge pressure of 55 cm H2O, if you squeeze on an effective area of 48 cm^2.
The tension contrast can be determined as follows:
ΔP = (55 cm H2O) * (1 atm/760 cm H2O) * (101325 Dad/1 atm) = 7079 Dad
What's more, the power can be determined as:
F = ΔP * A = 7079 Dad * 48 cm^2 = 339,872 N
To work out the power expected to make a measure strain of 55 cm H2O, you want to initially change over the tension distinction into SI units (Pascals). This should be possible by increasing 55 cm H2O by a transformation figure that considers the connection between cm H2O and environments, and among climates and Pascals. Subsequent to changing over completely to Pascals, the power can be determined by increasing the tension distinction by the compelling region of the inflatable. The power is equivalent to the strain contrast duplicated by the region, so a bigger region will require a more modest power to create a similar tension.
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which direction are the courts moving regarding the rights of the accused?
The direction of the courts in recent years has been towards expanding and strengthening the rights of the accused, while also ensuring that justice is served and the rights of victims are protected.
One important development has been the increased recognition of the importance of the right to counsel. The Supreme courts has clarified that this right applies not only at trial, but also interrogations and other critical stages of criminal proceedings. The Court has also recognized that the right to counsel encompasses the right to effective assistance of counsel, meaning that the defendant's lawyer must be competent and provide a proper defense.Another area of focus has been the use of evidence obtained through unconstitutional means. The Supreme Court has ruled that such evidence cannot be used in court, even if it was obtained in good faith. This protects the accused from having their rights violated and ensures that only reliable and trustworthy evidence is used in criminal proceedings.Finally, the courts have also been moving towards greater protection for the rights of individuals who have been wrongfully convicted. This includes expanding the right to post-conviction DNA testing, as well as the right to compensation for individuals who have been wrongfully imprisoned.Learn more about courts here:
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What is the distance between earth and the sun?
A
150 million km
B
100 million km
C
250 million km
D
160 million km
About 93 million miles (150 million kilometers) separate Earth and the sun. Astronomers and astrophysicists use this distance, known as an astronomical unit (AU), as a standard unit of measurement.
In kilometers, how distant is the sun above Earth in India?As a result, we can observe from the previous explanation that there are 149.6 million kilometers between the earth and the sun. To determine the distance between the earth and the sun, use this astronomical approach.
How many million kilometers separate the Earth and the Sun?If you use standard measurements like feet or miles, it is nearly impossible to visualize the immensity of our solar system. 100 million kilometres (149 million kilometers) separate Earth from the Sun, whereas the distance to the Sun .
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a rifle is aimed horizontally at a target 86.48 m away. the bullet hits the target 2.58 cm below the aim point. what was the bullet's flight time?
After applying the kinematic relation, the bullet’s flight time would be 0.0726 s
The kinematic equations are a set of four equations that can be used to make predictions about information regarding an item's motion that is unknown, provided that other information regarding the motion of the object is known. The equations can be applied to any motion that can be characterized as either having a constant velocity (an acceleration of 0 m/s/s) or a constant acceleration (an acceleration of 0 m/s/s), and they can be used to analyze both types of motion. They are never permitted to be used during any time frame in which the acceleration is undergoing a change.
In this case we will be using the third kinematic relation:
d = vt + ½ gt²
in this case, we are given that:
d = (2.58 cm × ( 1 m ÷ 100 cm))
v = 0 m/s
g = 9.8 m/s
Thus, the bullet’s flight time would be:
(2.58 cm × ( 1 m ÷ 100 cm)) = (0 m/s) × t + ½ (9.8 m/s) × t²
½ (9.8 m/s) × t² = (2.58 cm × ( 1 m ÷ 100 cm))
T = √0.005265
T = 0.0726 s
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Use the formulas below to match the number to how many of each element are present. (i.e. There are 2 Aluminum and 3 Oxygen present in Aluminum oxide Al2O3)
Bromine: Br2
Lithium Sulfide: Li2S
Silicon Hydride: SiH4
Magnesium Phosphide: Mg3P2
Sodium Carbonate: Na2CO3
PLEASE HELP!! And PLEASE be accurate!!! Thank you very much!!
Alumunium has an atomic number (Z) of 13 So, its electronic configuration is [Ne] 3s2 3p1 Hence, it needs to lose 3 electrons to attain stable configuration, hence its valency is three. Oxygen has an atomic number (Z) of 18 So, its electronic configuration is [He]2s23p1.
How many oxygen molecules does Al2O3 exist?This formula's subscripts (2 and 3) indicate how so many atoms will make up each unit of a compound.The 2 denotes the presence of two aluminum atoms and the 3 denotes the presence of three oxygen atoms.
How many atoms and elements are there in the formula al2 co3 3?So there's also aluminum, plus carbon now and nine oxygens.Therefore, the sum of the atoms is two + three plus nine, which equals 14.In the formula given after the molecule, there are therefore 14 atoms.The issue has now been resolved.
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What two things are wrong with the following sentence: "The velocity of an object can be written as v = 14 mph." A)there is no direction given for velocity B)there is no magnitude given for velocity C)mph is not a valid unit for velocity D)the notation v is incorrect because it does not have an arrow above it or it is not bolded to indicate it is a vector
A) No velocity direction is provided.
B) The mph unit of measurement is invalid.
Explained: Because velocity is a vector quantity, it has both a magnitude and a direction. The statement "The velocity of an item can be represented as v = 14 mph" is untrue since it only expresses the magnitude and not the direction of the velocity.
Additionally, velocity cannot be measured using the unit mph (miles per hour). Typically, the units used to express velocity are metres per second (m/s), kilometres per hour (km/h), or feet per second (ft/s). The common unit for velocity in physics and engineering is typically metres per second (m/s).
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you are driving to the grocery store at 18.36 m/s. you are 157.26 m from an intersection when the traffic light turns red. assume that your reaction time is 0.66 s and that your car brakes with constant acceleration. how far are you from the intersection when you begin to apply the brakes?