What are advantage of frictional force ?

According to newton's first law of motion what is required to make an object slow down

What an object is made of and the color of light that strikes it determine the a. apparent color of the object. b. transparency of the object. c. opacity of the object. d. translucence of the object.

How can biologic weathering result in chemical weathering? A. Bacteria release acids and other agents that break down rock B. Large herds temple rocks and break up soil C. Root loosen soil and break rock

An element is made up of

Color depends on what characteristic of light? a) its frequency b) its amplitude c) both of these

Match these terms with their definitions: 1. unit of electrical resistance ampere 2. unit of electromotive force or electrical potential ohm 3. unit for measuring the strength of an electric current volt 4. unit of electrical power watt

In which is momentum conserved: an elastic collision or an inelastic collision?

List the types of radiation in order from least to most damaging.

Which of the following statements best describes the current state of understanding regarding the apparent acceleration of the expansion of the universe?

Should young people be allowed to do extreme sports? (give me two reasons why) 1. Opinion: 2. Reason why: 3. Reason why: