Yvette was looking at a map that showed where hurricanes had formed. she noticed that more hurricanes formed over tropical oceans than over colder ocean areas. which of these best explains why more hurricanes form over tropical oceans than cold oceans? a. water has more waves in tropical oceans than in colder oceans. b. air has less moisture over tropical oceans than over cold oceans. c. water has fewer currents in tropical oceans than in colder oceans. d. air has more moisture over tropical oceans than over cold oceans.

A1,200 kg car is accelerated at 3.7 m/s2. what force was needed to produce this acceleration? a. 4,440 n b. 324.3 n c. 4,388 n d. 304.3 n

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created or , but it can be

Intro: a solid ball of radius rb has a uniform charge density ρ. part a: what is the magnitude of the electric field e(r) at a distance r> rb from the center of the ball? express your answer in terms of ρ, rb, r, and ϵ0. part b: what is the magnitude of the electric field e(r) at a distance r express your answer in terms of ρ, rb, r, and ϵ0. part c: let e(r) represent the electric field due to the charged ball throughout all of space. which of the following statements about the electric field are true? check all that apply. e(0) = 0 e(rb)=0 limr→∞e(r)=0 the maximum electric field occurs when r=0 the maximum electric field occurs when r=rb the maximum electric field occurs as r→∞.