The answer pleaseeeeeee

Answer:

it a most depends on the moving objects mass

Answer:

Its amount depends on the moving object’s mass,

It can be transferred from one object or body to another, and  Its amount depends on the moving object’s speed.

Explanation:

Answer:

Newtons third law states, "The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object."

Explanation:

an illustration of this would probably be a missile.

Answer: C. “More mass is added to a wheelbarrow remains, and larger forces required to move it”

Answer:

When applying Fleming's rule to electrons, remember that the direction of the current is opposite to that of the electrons' motion. The electron follows a circular path, the magnetic force being the unbalanced force required to cause acceleration towards the centre of the circle.

Answer with Explanation:

As a charged particle, the electron moves in a circular motion in a magnetic field because of a magnetic force that is perpendicular to its movement/travel (also known as velocity). This force doesn't affect the moving electron except for its motion; thus, the electron remains at constant or uniform speed. This is according to Fleming's rule regarding electrons.

Remember that this happens provided that the charged particle will move at right angle to the area of magnetic field.

Answer:

t=0.14s

Explanation:

Complete Question

Find the force that must be exerted on the rod to maintain a constant current of 0.173 A in the resistor.

The figure below shows a zero-resistance rod sliding to the right on two zero-resistance rails separated by the distance L = 0.451 m . The rails are connected by a [tex]12.6 \Omega \   resistor[/tex], and the entire system is in a uniform magnetic field with a magnitude of 0.751 T .

The diagram illustrating this question is shown on the first uploaded image

Answer:

The value is  [tex]F =  0.0586 \ N [/tex]

Explanation:

  From the question we are told that  

   The current is  [tex]I  =  0.173 \ A[/tex]

    The length of separation is  [tex]L= 0.451 \ m[/tex]

     The resistance is  [tex]12.6 \Omega[/tex]

    The magnetic field is  [tex]B  =   0.751\  T[/tex]

Generally the force is mathematically represented as

    [tex]F =  BIL sin (\theta )[/tex]

Given that the velocity is perpendicular to magnetic field then [tex]\theta  =  90[/tex]

=>   [tex]sin(90)  =  1[/tex]

So

    [tex]F =  0.751 *0.173  * 0.451 sin (\theta )[/tex]

    [tex]F =  0.751 *0.173  * 0.451 * 1[/tex]

    [tex]F =  0.0586 \ N [/tex]

Answer:

53.85m

Explanation:

If we are assuming that d1 is one side of a triangle, and d2 is the other, and we are looking for the magnitude, which is essentially the hypotenuse, we use Pythagorean Theorem. a^2+b^2=c^2. 20^2 + 50^2 = 2900.

The square root of 2900 is 53.85164. Therefore, that is your hypotenuse.

Answer:

Explanation:

10.00 5

Answer:

b

Explanation:

I took this unit last year and i think b is the right answer

Acceleration of an object is directly related to the net force exerted upon it and inversely related to the mass of the object.

Newton's second law of motion states that the acceleration of an object as produced by a net force, is directly proportional to the magnitude of the net force, and inversely proportional to the mass of the object.

From this law, it means that once the acceleration is doubled, the force exerted on the object is equally doubled.

Also when the mass is increased, the acceleration is reduced.

Therefore, mathematically:

F =ma

where, f = force

m = mass

a= acceleration

Therefore, acceleration of an object is directly related to the net force exerted upon it and inversely related to the mass of the object.

Learn more here:

https://brainly.com/question/12043464

Answer:

Explanation:

The image is real light rays actually focus at the image location). As the object moves towards the mirror the image location moves further away from the mirror and the image size grows (but the image is still inverted).

Answer:

Which most likely has the greatest conductivity?

a warm plastic rod

a cool rubber tube

a warm copper wire

Explanation:

The warm copper wire most likely has the greatest conductivity.

Conductivity is a measure of how easily a material can conduct electricity. Metals like copper are known for having high electrical conductivity due to the presence of free electrons that can move easily through the material when an electric field is applied.

Non-metallic materials like plastic and rubber generally have low electrical conductivity because they do not have free electrons available for conduction.

Additionally, the temperature of the material can also affect its conductivity. As temperature increases, the movement of atoms and molecules in the material also increases, which can cause a decrease in electrical conductivity.

Therefore, of the materials listed, the warm copper wire is most likely to have the greatest conductivity due to its metallic properties and elevated temperature.

Learn more about conductivity here:

https://brainly.com/question/15085692

#SPJ6

Answer:

How would you describe where you are right now? You

might say that you are sitting one meter to the left of your

friend. You might explain that you are at home, which is two

houses north of your school.

Explanation:

Hope this helps!

Answer:

v=6.05 m/s

Explanation:

Given that,

Th initial velocity of the lander, u = 1.2 m/s

The lander is at a height of 1.8 m, d = 1.8 m

We need to find the velocity of the lander at impact. It is a concept based on the conservation of mechanical energy. So,

[tex]\dfrac{1}{2}mv^2-\dfrac{1}{2}mu^2=W\\\\\dfrac{1}{2}mv^2-\dfrac{1}{2}mu^2=F\times d\\\\\dfrac{1}{2}mv^2-\dfrac{1}{2}mu^2=mgd\\\\\dfrac{1}{2}m(v^2-u^2)=mgd\\\\v^2-u^2=2gd[/tex]

v is the velocity of the lander at the impact

g is the acceleration due to gravity on the surface of Mars, which is 0.4 times that on the surface of the Earth, g = 0.4 × 9.8 = 3.92 m/s²

So,

[tex]v=\sqrt{u^2+2gd} \\\\v=\sqrt{(1.2)^2+2\times 9.8\times 1.8} \\\\v=6.05\ m/s[/tex]

So, the velocity of the lander at the impact is 6.05 m/s.

Answer:

50

Explanation:

Answer:

v= 14 m/s

Explanation:

        ⇒ΔK = -ΔU

        ⇒ [tex](\frac{1}{2}*m*v^{2}-0) =-(0- m*g*h) = m*g*h[/tex]

       [tex]v_{f} = \sqrt{2*g*h} =\sqrt{2*9.8m/s2*10.0m} = 14 m/s[/tex]

Answer:

v = 16,66 m/s

Explanation:

To obtain the velocity of the train we must use the velocity formula for a uniform line movement:

v = x/t

Where x is the space and t is time.

replacing given values:

v = 180 km / 3 h

v = 60 km/h

to pass this value to international units:

v = 60 / 3,6 m/s

v = 16,66 m/s

Answer: 143 N

Explanation:

Answer:

"When face is placed between the concave mirror and its focus, it produces a magnified image. This enlarged image of face is helpful in makeup as even pores of skin are clearly visible."

Answer:

the type of tire and the type of fuel

Explanation:

Answer:

Explanation:

From  the question we are told that

   The mass of chlorine ion is [tex]m_c  =  35u  =  35 * 1.66*10^{-27} =  5.81*10^{-26}\ kg[/tex]

    The charge is  [tex]q =  5e   = 5 *  1.60 *10^{-19} = 8.0*10^{-19}\ C[/tex]

   The potential difference is  [tex]V  =  250 kV  =  250*10^{3}  \  V[/tex]

    The radius of curvature of the path is  [tex]r = 3.5 \ m[/tex]

Gnerally the magnetic force will cause the speed of the  chlorine ions to change from 0 m/s to [tex]v_y[/tex] m/s along the y -axis but will not affect the velocity along the x-axis

Generally according the law of energy conservation

          [tex]K =  PE[/tex]

Here K is the kinetic energy of the of the chlorine ions which is mathematically represented as

      [tex]K  =  \frac{1}{2} mv^2[/tex]

And  PE is electric potential  energy which is mathematically represented as

       [tex]PE  =   Q *  V[/tex]

So

      [tex] \frac{1}{2} mv^2 =  Q *  V [/tex]

=>   [tex] \frac{1}{2} *  5.81*10^{-26}  *  v^2 =  8.0*10^{-19} *  250*10^{3} [/tex]

=>    [tex] v =  sqrt{6.8847 *10^{12}} [/tex]

=>    [tex] v = 2.634 *10^{6} \ m/s [/tex]

Explanation:

u=0 m/s

v=9.6 m/s

s= 40.5 m

a=?

V^2=u^2 +2as

9.6^2=0+2×a×40.5

92.16=81a

a=92.16/81

a=1.14m/s^2

Answer:

opinion

Explanation:

Answer:

a) 209.3 kilojoules must be removed from two liter of beverage, b) A rate of heat removal of 1.163 kilowatts is required to cool down 10 2-liter bottles, c) Cooling 10 2-L bottles during 30 minutes costs 4.9 cents.

Explanation:

a) How much heat energy must be removed from your two liters of beverage?

At first we suppose that the beverage has the mass and specific heat of water and that there are no energy interactions between the bottle and its surroundings.

From the First Law of Thermodynamics and definition of sensible heat, we get that amount of removed heat ([tex]Q[/tex]), measured in kilojoules, is represented by the following formula:

[tex]Q = \rho \cdot V\cdot c\cdot (T_{o}-T_{f})[/tex] (Eq. 1)

Where:

[tex]\rho[/tex] - Density of the beverage, measured in kilograms per cubic meter.

[tex]V[/tex] - Volume of the bottle, measured in cubic meters.

[tex]c[/tex] - Specific heat of water, measured in kilojoules per kilogram-Celsius.

[tex]T_{o}[/tex], [tex]T_{f}[/tex] - Initial and final temperatures, measured in Celsius.

If we know that [tex]\rho = 1000\,\frac{kg}{m^{3}}[/tex], [tex]V = 2\times 10^{-3}\,m^{3}[/tex], [tex]c = 4.186\,\frac{kJ}{kg\cdot ^{\circ}C}[/tex], [tex]T_{o} = 35\,^{\circ}C[/tex] and [tex]T_{f} = 10\,^{\circ}C[/tex], then:

[tex]Q = \left(1000\,\frac{kg}{m^{3}}\right)\cdot (2\times 10^{-3}\,m^{3})\cdot \left(4.186\,\frac{kJ}{kg\cdot ^{\circ}C} \right) \cdot (35\,^{\circ}C-10\,^{\circ}C)[/tex]

[tex]Q = 209.3\,kJ[/tex]

209.3 kilojoules must be removed from two liter of beverage.

b) You are having a party and need to cool 10 of these two-liter bottles in one-half hour. What rate of heat removal, in kW, is required?

The total amount of heat that must be removed from 10 2-L bottles is:

[tex]Q_{T} = 10\cdot (209.3\,kJ)[/tex]

[tex]Q_{T} = 2093\,kJ[/tex]

If we suppose that bottles are cooled at constant rate, then, rate of heat removal is determined by this formula:

[tex]\dot Q = \frac{Q_{T}}{\Delta t}[/tex] (Eq. 2)

Where:

[tex]Q_{T}[/tex] - Total heat, measured in kilojoules.

[tex]\Delta t[/tex] - Time, measured in seconds.

[tex]\dot Q[/tex] - Rate of heat removal, measured in kilowatts.

If we know that [tex]Q_{T} = 2093\,kJ[/tex] and [tex]\Delta t = 1800\,s[/tex], we find that rate of heat removal is:

[tex]\dot Q = \frac{2093\,kJ}{1800\,s}[/tex]

[tex]\dot Q = 1.163\,kW[/tex]

A rate of heat removal of 1.163 kilowatts is required to cool down 10 2-liter bottles.

c) Assuming that your refrigerator can accomplish this and that electricity costs 8.5 cents per kW-hr, how much will it cost to cool these 10 bottles (in $)?

A kilowatt-hour equals 3600 kilojoules. The electricity cost is equal to the  removal heat of 10 bottles ([tex]Q_{T}[/tex]), measured in kilojoules, and unit electricity cost ([tex]c[/tex]), measured in US dollars per kilowatt-hour. That is:

[tex]C = c\cdot Q_{T}[/tex]

If we know that [tex]c = 0.085\,\frac{USD}{kWh}[/tex] and [tex]Q_{T} = 2093\,kJ[/tex], the total cost of cooling 10 bottles is:

[tex]C = \left(0.085\,\frac{USD}{kWh}\right)\cdot \left(2093\,kJ\right)\cdot \left(\frac{1}{3600}\,\frac{kWh}{kJ} \right)[/tex]

[tex]C = 0.049\,USD[/tex]

Cooling 10 2-L bottles during 30 minutes costs 4.9 cents.

Answer:

We are given:

m = 50g OR  0.05 kg

v = 1000 m/s

Force applied by the gunner in a second = 180 N

Momentum(p) of the bullet:

p = mv

p = 0.05 * 1000

p = 50 kg m/s

Finding the recoil force:

The units kg m/s are also known as 'N' (newtons)

So, we can say that the force exerted on every bullet is 50 N

According to the law of conservation of momentum, every bullet fired applies a force of 50N towards the gunner

Hence, we can say that the recoil force of every bullet is 50N

Finding the number of bullets fired in a minute:

We are given that the gunner applied an average force of 180N on the gun

we know that that can also be written as 180 kg m/s. Notice the 's' in the units of the momentum, it tells us that this force is applied every second

So, to find the amount of force applied in a minute, we can multiply it by 60

Force applied by the gunner in a minute = (60 * 180) = 10800 N

Let n be the number of bullets fired in a minute

We can say that the force applied by the gunner is equal to the force applied by a bullet times the number of bullets fired

F(gunner) = n * F(bullet)

10800 = n * 50

n = 10800/50

n = 216 bullets / minute

The gunner shoots 216 bullets in a minute

Answer:

ome acid rain occurs naturally, but sulfur dioxide and nitrogen oxide emissions from smokestacks combine with rain to make sulfuric and nitric acid in amounts that harm the environment. The region of the United States most harmed by acid rain is the East Coast, including the Appalachian Mountains and the Northeast.

Explanation:

pls give me brainlist

Answer:

Kenetic Energy?

Explanation:

I need more context of what you are studying here...

Answer:

Yes, the water will be reach the fire.

The hose should be at 34.7 m from the building

Explanation:

Given that,

Height of building's =34.5 m

Speed = 29 m/s

Angle = 63°

Distance from the ground = 0.90 m

We need to calculate the actual height

Using formula of height

[tex]H=\dfrac{u^2\sin^2\theta}{2g}[/tex]

Put the value into the formula

[tex]H=\dfrac{29^2\sin^2{63}}{2\times9.8}[/tex]

[tex]H=34.0\ m[/tex]

The height from the ground will be

[tex]H'=34+0.90[/tex]

[tex]H'=34.9\ m[/tex]

We can say that, the water gun attained the maximum height that is 0.4 m more than the 10th floor.

So, yes, the water will be reach the fire.

We need to calculate the range

Using formula of range

[tex]R=\dfrac{u^2\sin2\theta}{g}[/tex]

Put the value into the formula

[tex]R=\dfrac{29^2\times\sin(2\times63)}{9.8}[/tex]

[tex]R=69.4\ m[/tex]

The house should be at half of R.

[tex]\dfrac{R}{2}=\dfrac{69.4}{2}[/tex]

[tex]\dfrac{R}{2}=34.7\ m[/tex]

Hence, Yes, the water will be reach the fire.

The hose should be at 34.7 m from the building

Given parameters:

Mass of block = 5kg

Coefficient of friction = 0.5

g = 10m/s²

Unknown

Minimum force F required to hold the block =?

Solution:

Frictional force is a force that opposes motion.

The minimum force required to hold the block to the wall is the frictional force.

   Frictional force  =  uN

  Where u is coefficient of friction

              N is the normal force

      N = mg

where m is the mass of the body

          g is the acceleration due to gravity

 So,

         Frictional force = umg

                                   = 0.5 x 5 x 10

                                    = 25N

The force required here is 25N

Answer:

The reason behind the given instance is summarized below.

Explanation:

Answer:

The Elements are arranged from left to right and top to bottom in order of increasing atomic number, and aslo

The arrangement of the periodic table was formulated in order to give a very informative representation of the chemical elements