A 1000 kg rocket ship is traveling at 40 m/s. If the velocity changes to 70

m/s, the kinetic energy will

A) increase

B) decrease

C) stay the same

A microwave uses a 14 a of electricity if 120 v is run through it what is the resistance of the microwave

Combined vectors that go only forward or backward are one dimensional. A. true B. false

Are Roots or Plant Making Cracks in The Concrete Chemical or Weathering?

Why does a partially inflated balloon expand as it rises?

A new battery has an emf of 1,52 V. When a wire of negligible resistance is connected between the terminals of the battery, a current of 7,05 A is produced. Find the internal resistance of the battery.

A hot-air balloon is ascending at the rate of 14 m/s and is 84 m above the ground when a package is dropped over the side. (a) How long does the package take to reach the ground? (b) With what speed does it hit the ground?

Now assume that the pitcher in Part D throws a 0.145-kgkg baseball parallel to the ground with a speed of 32 m/sm/s in the + x direction. The batter then hits the ball so it goes directly back to the pitcher along the same straight line.

How far away is a cliff if an echo is heard 0.486 s after the original sound? Assume that sound traveled at 343 m/s on that day.

Rafael swings a baseball bat with a force of 25 N. The baseball bat exerts a force of 5 N on the baseball. What is the mechanical advantage of the baseball bat? The mechanical advantage of the baseball bat is

Minerals such as sulfur can sometimes be identified by colors, true or false.