Study the graph shown. It is a graphic of a car trip taken by Karen and her mother. The starting position (0,0) is their home. What is the average speed of the car during the first hour of the trip?

The wavelength of a wave is the distance between a. the crest and the following trough. b. two consecutive crests. c. the amplitude and the normal position. d. the rarefaction and the following compression.

A cat runs and jumps from one roof top to another which is 5 m away and 3 m below. Calculate the minimum horizontal speed with which the cat must jump off the first Roof in order to make it to the other.

5. Electromagnetic radiation travels at a speed of 3.0 x 10^8 m/s. a) What is the wavelength of a radio wave that has a frequency of 3.5 x 10^5 Hz? b) What is the frequency of an X-ray that has a wavelength of 2.5 x 10^-10 m?

Assume a change at the source of sound reduces the wavelength of a sound wave in air by a factor of 15. (i) what happens to its frequency?

Guess and write what would happen if either magnitude scale is greater than 8?

Liquid hazardous wastes are blended in a CSTR to maintain a minimum energy content before burning them in a hazardous waste incinerator. The energy content of the waste currently being fed is 8.0 MJ/kg (mega - joules/kilogram).

Explanation's of E=MC²

Suppose two chemicals are reacted together. It takes 750 kJ of energy to break the bonds of the reactants and 1050 kJ of energy are released by the formation of the products. Which statement is true about the reaction? The reaction is exothermic.

Rank the types of nuclear radiation from most massive to least massive.

What volume of sliver metal weigh exactly 2500.0g. The density of silver is 10.5g/cm3