a 85 Kg girl, running 1.5 m/s, runs for 2550 seconds. How much force is required to stop her in 5 seconds

A physical representation of a real object, such as a globe of the world, is an ___ model

In order to do work on an object, the force you exert must be

Two charges, Q1 and Q2, are separated by 6·cm. The repulsive force between them is 25·N. In each case below, find the force between them if the original situation is changed as described. (a) The magnitude of charge Q1 is reduced to Q1/5.

When does a planet have the fastest speed in its orbit? when it has a very low mass when it has a slow rotation when it is closest to the sun when it is farthest from the sun

A car travels in a straight line for 3.8h at a constant speed of 52km/h what is its acceleration?

In our physical world, by far, the most abundance free charge in the universe is the electron, which has a negative charge. What do we mean, then, when we say that the surface of an object is positively charged?

You're going camping and are thinking of carrying 3 gallons of water. How much does the water weigh, in units of pounds?

A student is performing a double-slit experiment to determine the wavelength of a light source. She has measured the distance between dark bands and the distance between the slits and the screen.

If a substance cannot be broken down chemically into smaller substances it is A) An element B) a compound C) an atom D) a molecule

Describe the general characteristics of the nearest stars. (Size, luminosity, color, etc., do not include specific stars)