A car is moving at a rate of 72 km/hr. How far does car move when it stop after 4 seconds?

If you pick a rock up off the ground, what is the reaction force?

A certain radar installation tracks airplanes by transmitting electromagnetic radiation of wavelength 4.0 cm. a) Find the frequency of this radiation. b) Find the time required for a pulse of radar waves to reach an airplane 4.8 km away and return.

Would thermal energy be greater at 0 C or 48 F

Is the volume of a solid definite or indefinite?

What does this tell you about what necessary to succeed in today's complex environment?

Animals that can hear ultrasonic sounds are the what

If the rock has a mass of 1 kg which is the speed of the rock after it has fallen for two seconds

2 Cars A and B both at rest are to set of from a town to a common destination along the same route. Car A was the first to take off and travelled at 2.

In an experiment to measure the acceleration due to gravity, g two values, 9.72 m/s2 and 9.67 m/s2, as determined. if the accepted value of g is: 9.8 m/s2 find the followings: i) the percentage difference of the measurements?

If momentum is conserved in a collision, does this indicate conclusively that the collision is elastic?