If a snake crawls 4 m south and then crawls 3 m north, what is its displacement?

A. 1 m north

B. 1 m south

C. 3 m north

D. 4 m south

The speed of sound in air is 340 m/s. what is the speed of a supersonic plane that travels at twice the speed of sound? give your answer in kilometers per hour and miles per hour.

What is the atmosphere and why is it important?

If you had a sample containing 55 alpha particles, how many protons would be present in that sample?

This type of ray is not affected when it is passed through a pair of electrically charged plates

Where is the body located in a sentence

A machine has a mechanical advantage of 5. if 300 newtons of input force is used to produce 3,000 newton meters of work what is the output force and what is the distance over which the work is applied

An experiment in your science class lists the materials needed for the lab. It is your job, as a lab partner, to measure out 25 mL of distilled water and 2.5 grams of magnesium.

If the water cycle is effective why are some areas in the world always short on water?

Low-frequency red light is used in dark rooms because it does not expose the film. This is because the red light has a low

Mark puts an object that has a mass of 58.2kg in a cart that has a mass of 73.00 kg.