Suppose the mechanical advantage of a machine is 4 and the input force is 20 N. What is the output force?

A hot plate has a resistance of 50 Ω. If the current flowing through it is 2.4 A, then the potential difference across the device is

Two objects of the same mass move along the same line in opposite directions. The first mass is moving with speed. The objects collide, stick together, and move with speed 0.100 in the direction of the velocity of the first mass before the collision.

A 23.8 kg space rock is pushed with a force and accelerates at 8.97 m/s/s. How much force was applied?

How is light described?

All the terrestrial planets have

What should a scientist do to use scientific methods for determining the relative age of Earth's rocks? A be biased in opinion B disregard views of others C use creative ideas D prove that methods are non-testable

If a sample of gas is heated at a constant pressure what will happen to the volume of the gas

1. What is the speed of sound in air that has a temperature of 90.0 °C?

What effect does a doubling of the mass have upon the acceleration of the object? Be quantitative.

What type of intermolecular forces would you expect to find in a pure liquid sample of carbon tetrachloride?