A baseball is popped straight up into the air and has a hang-time of 6.25 S.

Determine the height to which the ball rises before it reaches its peak. (Hint: the

time to rise to the peak is one-half the total hang-time.)

A pendulum on Planet X, where the value of m is unknown, oscillates with a period T1 = 8 s. Note that you do not know the value of m, L, or g, so do not assume any specific values. The required analysis involves thinking about ratios.

In chemistry class, you are given 3 liquids: Liquid A, Liquid B, and Liquid C. They are each in their own beaker. One of these liquids is water which has a denisty of 1.0 g/mL. You also have an ice cube with a density of 0.

Which group contains examples of materials that were not part of a living thing

Rays traveling parallel to the principle axis of a concave mirror will reflect out through the mirrors focus? a. true b. false

Which of these causes physical weathering? A) wind B) glaciation C) freezing temperatures

Kai was 200 meters north of the library when he remembered he had to return some books to the library. It took him 200 seconds to do the round trip. Which best describes Kai's roundtrip?

The engine that powers a crane burns fuel at a temperature of 1500 oC. It is cooled by air at a temperature of 20 oC. The crane is used to lift a 1000 kg steel girder 30 m into the air.

The portion of a light ray that falls on a surface is a/an

Give the definition for diffusion. (A) gas molecules mix unequally average distance between collisions (B) gas molecules escape from a container into a vacuum through a small hole (C) gas molecules mix equally (D) gas molecules spread out in a

As resistance goes up, what happens to the current?