A flat-topped toy cart moves on frictionless wheels, pulled by a rope under tension t. The mass of the cart is m1. A load of mass m2 rests on top of the cart with the coefficient of static friction s between the cart and the load. The cart is pulled up a ramp that is inclined at angle theta above the horizontal. The rope is parallel to the ramp. What is the maximum tension t that can be applied without causing the load to slip? (use any variable or symbol stated above along with the following as necessary: g. ).

Which of the following must happen in order for productivity to increase? a. production levels remain unchanged while inputs increase. b. production levels rise while inputs decrease. c. production levels fall while inputs increase.

A24-n net force acts on a 8-kg rock. what is the acceleration of the rock?

Apopulation of deer mice was introduced into a desert ecosystem. being dark-colored, the deer mice stood out in the sand and were easy prey for predators. over a few years, the color of the mice changed from dark brown to light brown. what role does natural selection play in this example? a. the change of color camouflaged them, which them hunt better. b. the change of color enabled them to regulate their body temperature. c. the change of color allowed them to hide better from predators. d. the change of color made their bodies tolerant to the harsh desert sand. e. the change of color allowed them to deflect the excessive heat.