Which situation are economists describing when they use the term scarcity? a) when one has a surplus of natural resources and/or labor b) when one does not need to make trade-offs to satisfy one’s needs c) when one does not have enough resources to satisfy all of one’s wants d) when one’s wants and needs are fully met

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

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

If you put a helium-filled balloon in the refrigerator, what will happen?