Analyzing an Example of the Interaction of Spheres Try it
Which of the spheres interact in the formation of coal?
Check all that apply.
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Read the paragraph, and then answer the question.
Coal is a black, hard substance formed from the remains
of living things that existed a long time ago. The remains
were buried and exposed to pressure and temperature
underneath Earth's surface. Over time, these remains solidified.

Increasing the pressure on one spot of a fluid will increase the pressure everywhere else in the fluid a. pascals principal b. archimedes' principal c. bernoulli's principal

3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.