A system of pulleys is used to raise a load of bricks that weighs 1,700 newtons. The force applied to the pulley is 340 newtons. What's the mechanical advantage of this machine?

What's the relationship between the starting height of a ball and the height of its first bounce?

In 10s a car accelerates 4m/s^2 to 60m/s. How fast was the car going before it accelerated?

A book is sitting on a shelf that is 3.0 meters off the ground. Kinetic energy is found using the formula 1/2 times mass times speed. Potential energy is found by taking mass times g times height, with g as the constant, 9.8 m/s squared.

Which factor below does NOT affect how fast a solute dissolves in a solvent?

Two or more atoms joined into a single particular form a (n)

What is Nothing. (sorry i have been wondering this for a very long time)

What is the weight of a 15kg dog on earth?

Identify the scenario below as to whether they increase, decrease, or not change the frequency in which a string vibrates and thus change its pitch. Assume that no other changes are happening. 1. Tightening a string for greater tension 2.

Explain what each of the following scientists contribute to the atomic theory

A fully charged parallel-plate capacitor remains connected to a battery while a dielectric is slid between the plates. Do the following quantities increase, decrease, or stay the same? Select one or more: a. delta V increases b.