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?

Simon is writing a story about an astronaut whose spacecraft has been boarded by space pirates. the astronaut has her lucky penny in her hand behind her back as the space pirates break into the control room. she has just locked the controls so that the ship is accelerating in the direction of the control room’s ceiling. simon wants the astronaut to use the penny to hit a button on the control panel to turn off the lights and escape. the button is located a short distance behind and below the astronaut’s hands. how should simon use the theory of relativity to describe what the astronaut must do in order to hit the button?

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?

Smallest intensity of a stimulus that you can detect 50 percent of the time is