What factors would change the force of friction?

Because stars are said to have a life cycle, we expect that they will eventually die cease to have an orbit continue to move in circular orbits create living organisim

What was the first period of the Paleozoic era

Calculate the potential energy of a rock with a mass of 55kg while sitting on a cliff that is 27m high

Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the man is 86 kg, and the mass of the woman is 51 kg. The woman pushes on the man with a force of 46 N due east.

When buying a car, you tell the salesman that you want to make sure the car can go from 0 miles per hour to 60 miles per hour in 5 seconds. You are describing the car's

An object rolls east at a steady speed of 12m/s for 3.0 seconds. what distance did it travel

What is another name for Kepler's first law? A. law of periods B. law of ellipses C. law of universal gravitation D. law of equal areas in equal times

An airplane has a momentum of 22,125 kg*m/s. if the airplane moves at a speed of 25 m/s. what is its mass?

There are more electrons than protons in a negatively charged atom. 1. True 2. False

In most cases, what happens to a liquid when it cools? A) Its density increases B) Its density decreases C) Its mass increases D) Its mass decreases E) Its volume increases F) Its volume decreases