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.

A car is moving with a constant acceleration. At t = 5.0 s its velocity is 8.0 m/s and at t = 8.0 s its velocity is 12.0 m/s. What is its displacement in that interval of time?

In which scenario is gravitational potential energy present? A rabbit looks out of a hole in the ground. A squirrel runs up the trunk of a tree. A deer runs across a grassy field. A cat pins a mouse to the ground.

Which is an example of simile? The skater was a swan on a frozen lake. An alarm clock screamed until I awoke. Raindrops whispered against the windows. Her dress was as light as a paper snowflake.

What force does a trampoline have to apply to a gymnast to accelerate her straight up at? Note that the answer is independent of the velocity of the gymnastâshe can be moving either up or down, or be stationary.

How can a satellite "see" water vapor in the atmosphere?

How are water bottles recycled?

The electromagnetic waves that have the lowest frequency is called

A bullet is fired horizontally with an initial velocity of 144.7 m/s from a tower 11 m high. if air resistance is negligible, what is the horizontal distance the bullet travels before hitting the ground?

A 0.2 kg conductor of length 0.8 m carries 2 ampere current to the right in a magnetic field. What is the magnitude and the direction of the magnetic field acting on the conductor if the net force on the rod is zero?

A model rocket with a mass of 0.181 kg is launched into the air with an initial speed of 92 m/s. How much kinetic energy will the rocket have at a height of 164 m? Assume there is no wind resistance.