A 60-kg cheetah reaches a speed of 30 m/s as it chases its prey. What is the kinetic energy of the cheetah? A. 900J

B. 1,800

C. 27,000

D. 54,000 J

A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?

Which type of microscope would allow the viewer to see ribosomes inside a cell?

Part a constants huck finn walks at a speed of 0.60 m/s across his raft (that is, he walks perpendicular to the raft's motion what is huck's velocity (speed and direction) relative to the river bank? express your answer to three significant figures and include the appropriate units. relative to the shore)