What would happen if both the radius and mass of a planet were cut in half

Is it possible to do work on an object without changing the kinetic energy of the object? Now Why? a) Yes, it is possible by raising the object to a greater height without acceleration.

What minimum speed is required for the ball to clear the 0.90-m-high net about 15.0 m from the server if the ball is "launched" from a height of h = 2.70 m?

True or false the slope of a line is found by multiplying the rise by the run

The number of current paths in a series circuit is: a. one c. three b. two d. four

One railroad car rolls towards another. Describe the properties of the first car that determine its momentum and how it would impart an impulse to the second car.

From the earth, the moon subtends an angle of approximately 0.5°. If the distance to the moon is approximately 240,000 miles, find an approximation for the diameter of the moon accurate to the nearest hundred miles.

An alarm clock draws 0.5 a of current when connected to a 120 volt circuit. calculate its resistance.

A sprinter runs 200m west and 100 m east her displacement is

What is the relation of the sign of the charge on the charging body to the sign of the charge on the charged body when the charging is by contact

Example of a colloid?