Write the formula for potential energy (blank 1). Calculate the potential energy in Joules (1) of an object weighing 4 kilograms and
sitting 4 meters off the ground if gravity is 9.8 meters per second squared. Enter your
answer (blank 2)

Drag each item into the proper state of matter category.

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.