You pick up a 3.3 kg can of paint from the ground and lift it to a height of 1.4 m.
A. How much work do you do on the can of paint?
B. You hold the can stationary for half a minute, waiting for a friend on a ladder to take it. How much work do you do this time?
C. Your friend decides not to use the paint, so you lower it back to the ground. How much work do you do on the can as you lower it?

Using the work energy theorem. what is the velocity of a 850kg car after starting at rest when 13,000j of work is done to it.

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

Gravity is pulling an object into the sun. the closer the object gets to the sun, the greater the gravitational force that acts on the object, increasing its acceleration. a line graph plotting the speed of the object against time would have which shape? a: straight line of positive slope b: curved line that slopes upward c: curved line that slopes downward d: straight line of negative slope