Friction between solids can be most accurately defined as the force that opposes the sliding motion of two surfaces that are tou
1 answer:
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Answer: 1687.5 N
Explanation:
From the second law of motion given by Newton, Force is the rate change of momentum.
Mass of the baseball, m = 0.15 kg
Initial velocity, (negative because direction of initial velocity is opposite to the final velocity)
Final velocity,
The duration of collision,
Force,
Hence, the value of force is 1687.5 N.
Answer:
The amount of energy needed to raise the temperature of the cylinder by 25 °C is 23.3 KJ of heat.
Explanation:
The step by step calculation can be found in the attachment below. Thank you.
For this case we have that by definition, the kinetic energy is given by the following formula:
Where:
m: It is the mass
v: It is the velocity
According to the data we have to:
Substituting the values we have:
finally, the kinetic energy is
Answer:
Option A