Define the concept of inertia.
a. the property of an object to change its energy.
b. the property of an object to keep moving at its current speed and in its current direction.
c. the property of an object to have its motion changed by an outside force.
d. the property of an object to experience the same force it applies to another object.

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s.a. determine jay’s mass.b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)

Which car has the most kinetic energy? a. a car of mass 1000 kg with a speed of 3 m/s b. a car of mass 2000 kg with speed 7 m/s c. a car of mass 1000 kg with speed 7 m/s d. a car of mass 2000 kg with speed 3 m/s

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?