What is the change in internal energy if 60 J of heat are added to a system

and the system does 40 J of work on its surroundings? Use AU = Q-W.

13. A steel block has a volume of 0.08 m³ and a density of 7,840 kg/m³. What is the force of gravity acting on the block (the weight) in water? A. 6,700.56 N B. 7,600.18 N C. 6,150.64 N D. 5,362.

How to find initial velocity, when the acceleration is slowing down.

What kind of motion indicates a system where the net force equals zero

Displacement is the slope of a velocity vs. time graph. True or false

Which nitrogen base sequence is the partner of C-A-T-C-G-A? O C-A-T-C-G-A O G-T-A-G-C-T OT-G-C-T-A-G O G-C-A-T-G-T TI

As an astronaut travels towards Earth, her weight A. decreases because gravity decreases. B. decreases because her mass decreases. C. increases because gravity increases. D. remains the same because her mass remains the same.

Lightning often strikes water. a. True b. False

How much work must be done on a 10 kg snowboard to increase its speed from 4 m/s to 6 m/s?

If a spacecraft that seems to be motionless in deep space is given some type of quick push, what will happen? A. The spacecraft will not move because it only works on earth. B.

A fast, white water cascade is also known as what?