The same roller coaster car reaches the bottom of the track, 0 m from the ground. if no mechanical energy was lost to friction, what is the car kinetic energy?

A stopped car reaches 60 meters per second in 12 seconds. What is the acceleration?

A transformer is used to convert mechanical energy to electric energy

A powerful motorcycle can produce an acceleration of 3.50 m/s2 while traveling at 90.0 km/h. At that speed, the forces resisting motion, including friction and air resistance, total 400.0 N. (Air resistance is analogous to air friction.

A liquid changes rapidly into a gas at the liquid's?.

which of the following food chains shows one way that energy moves through an ocean ecosystem? a.) fish > plankton > whale > squid b.) squid > whale > fish > plankton c.) plankton > squid > fish > whale d.) whale > fish > plankton > squid

Examine the situation. Lloyd is studying the effect of breakfast cereal on the health of rats. He suspects that the cereal may be unhealthy. He feeds rats various amounts of breakfast cereal over a six-week period.

An electron travels into a 0.5 T magnetic field perpendicular to its path, where it moves in a circular arc of diameter 0.028 m. What is the kinetic energy of the electron?

What feels the strongest pull toward Earth and why? a box containing 10 baseballs or a box containing 15 baseballs?

Hello what is the meaning of physical science

Our galaxy, the Milky Way, has a diameter of about 100,000 light years. How many years would it take a spacecraft to cross the galaxy if it could travel at 99% the speed of light?