How does the amount of time in which the sun can warm earth affect the seasons?

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Debris produced by mining is called

Aman is trying to drag a small tree that he cut down. if the static coefficient of friction of the tree on the ground is 0.5 and the tree weighs 670 n, what is the minimum amount of horizontal force that the man will need to apply so that the tree will start moving? o a. 465 n o b. 230 n o c. 670 n o d. 335 n