What power of an engine is required to pump 2450N of water per second from a well 50m deep to the surface

A. 2.45*10^3watts

B. 2.45*10^4watts

C. 2.45*10^5watts

D. None of these

When vehicles meet on a steep, narrow road, not wide enough for two vehicles, which vehicle must yield the right-of-way? A. The vehicle going uphill B. The vehicle going downhill C. The vehicle going slower

Indicate whether the statement is true or false. Any force that causes an object to move in a circular path is called a centripetal force.

Which statement best describes beaches? A.) Beaches are always changing due to factors such as waves adding and eroding sand. B.) Beaches change little over time as waves follow the same patterns year after year. C.

Runner is faster than Runner

It's for a cross word and mechanical doesn't fit ☹️ This is a method by which a wave travels through a medium or a vacuum

Two railroad cars, each of mass 6500 kg and traveling 80 km/h in opposite directions, collide head-on and come to rest. how much thermal energy is produced in this collision?

What is a result of using a machine?

A boy rides motorbike with velocity of 20 m/s He accelerates his motorbike to a velocity of 30 m/s for 5 second. Calculate the acceleration produced in the motorbike. [Ams 2ms

How is a star's emission spectrum used to study stars?

A 52.0 kg skateboarder does a trick on a half-pipe. During the trick, he reaches a speed of 8.90 m/s. The radius of the half-pipe ramp is 3.00 meters. What is the minimum centripetal force necessary to keep the skater on the ramp?