A 1.5 kg cart initially moves at 2.0 m/s. It is brought to rest by a constant net force in. 30s. What is the magnitude of the net force?

Which statement best explains why Earth is not a perfect sphere? Earth revolves too quickly around the Sun Earth's spin on its axis causes the equator to bulge The circumference of the Earth is greater at its poles The gravity of the moon changes

When Isabela pushes a box

What will most likely happen if a light wave moves through a solid? It will increase in wavelength. It will decrease in speed. It will increase in speed. It will decrease in wavelength.

Which describes the use of a nonrenewable energy source? burning coal to create steam in power plants turning turbines with water held behind dams burning plant wastes to run generators

A 85.5 kg weight-watcher wishes to climb a mountain to work off the equivalent of a large piece of chocolate cake rated at 967 (food) Calories. How high must the person climb? The acceleration due to gravity is 9.

Relaying a message from a membrane receptor to a molecule that performs a specific function within a cell occurs when

Ultrasound consists of sound at frequencies most people can hear?

Ali has less mass flying in a jet high above the earth than when she stands on the surface of the earth. True False

A passenger jet flies from one airport to another 1,333 miles away in 2.2 h. Find its average speed in the mks system of units.

A string is wound tightly around a fixed pulley whose radius is 5.0 cm. As the string is pulled, the pulley rotates without slipping. What is the angular speed of the pulley when the string has a linear speed of 5.0 m/s?