The diagram shows a person using a piece of gym equipment to lift weights.

which best describes the body in terms of simple machines?

a. the knees are inclined planes, and the lower legs hold the loads. the ankles are the fulcrums.

b. the lower legs are inclined planes, and the knees hold the loads. the ankles are the fulcrums.

c. the lower legs are levers, and the knees are fulcrums. the ankles hold the loads.

d. the knees are levers, and the lower legs are fulcrums. the ankles hold the loads.

Which object is most likely represented by a dot?

Which situation will have the highest resistance? a. long wire and high temperatureb. short wire and high temperaturec. long wire and cold temperaturedshort wire and low temperature

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