Figure 10.29 in your textbook is an energy bar chart for a mountain climber pulling a bag of supplies up a slope. Suppose, instead, she uses the rope to lower the bag down the slope. Which of the bars of the chart will be negative? Select all that apply,

a.) Ki

b.) Kf

c.) Ui

d.) Uf

e.) Wext

f.) ΔEth

Please explain why, I have an exam coming up on this and want to understand.

Which of the following is a homogenous mixture? o a. a toy box filled with toys o b. blood o c. trail mix o d. spaghetti and meatballs submit

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat

Choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. a 1.0 kg block is placed on top of a 2.0 kg block. a horizontal rope pulls the 2.0 kg block across a frictionless floor with a force of 21.0 n. the coefficient between the two blocks is 0.75. does the 1.0 kg block on top slide?