The cross section for scattering a certain nuclear particle by a copper nucleus is 2.0 barns. If 109of these particles are fired through a copper foil of thickness 10 gm, how many particles are 588 Chapter 14 Collision Theory scattered

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

A3.9 g aluminum foil ball with a charge of +4.1×10−9 c is suspended on a string in a uniform horizontal e⃗ field. the string deviates to the right and makes an angle of 30∘ with the vertical. part a part complete what information about the e⃗ field can you determine for this situation? what information about the field can you determine for this situation? only the magnitude of e⃗ only the direction of e⃗ both the magnitude and the direction of e⃗ none of the above previous answers correct part b determine the magnitude of the electric field. express your answer with the appropriate units. e e = nothing nothing request answer part c determine the direction of the electric field. determine the direction of the electric field. to the right to the left away from you toward you

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form