Give an example of a contact force and an example of a force that acts at a distance.

Resistance and resistivity are related by a: 1. factor that is dependent on the length of the material 2. factor that is dependent on the area of the material 3. proportionality constant dependent on the identity of the material 4.

We've seen that stout tendons in the legs of hopping kangaroos store energy. When a kangaroo lands, much of the kinetic energy of motion is converted to elastic energy as the tendons stretch, returning to kinetic energy when the kangaroo again

Friction force equation

What type of epithelium lines the urinary bladder and is capable of distention?

Why e=mc2? why not e=mc3?

A linearly-polarized electromagnetic (EM) wave has an electric field with amplitude 1000 V/m. You hold a a linear polarizer in front of it and rotate the polarizer so that all of the EM wave is blocked. You then rotate the polarizer 30 degree.

Let y'=4 x. find all values of r such that y = rx^{2} satisfies the differential equation. if there is more than one correct answer, enter your answers as a comma separated list.

What are the starting materials for nuclear fission

Why is it possible to throw a 0.145 kg baseball much further than a 7 kg bowling ball?

What is the name of the force that opposes or slows down the motion of objects