How long must a simple pendulum be if it is to make exactly one swing per six seconds? (that is, one complete oscillation takes exactly 12 s.) ?

A metal's luster is due to energy from the nuclei of its atoms being given off as visible light the free flow of electrons between its atoms light energy being absorbed and given off again by its valence electrons valence electrons giving off energy

A hot-air balloon is ascending at the rate of 14 m/s and is 84 m above the ground when a package is dropped over the side. (a) How long does the package take to reach the ground? (b) With what speed does it hit the ground?

Speed in any given direction is called A. Trust B. velocity C. mass D. acceleration

An object is dropped at a height of 6 m from the ground. How fast is it moving just before it hits the ground?

A proton is released in a uniform electric field, and it experiences an electric force of 2.36*10-14 N toward the south. (a) What is the magnitude of the electric field? (b) What is the direction of the electric field?

A long distance runner has an average speed of 4m/s during a race. How far does the runner travel in 20 minutes?

Density is calculated by dividing

The one island species evolved into three different species. This is called?

Find the components of vector M shown in figure 5-7

Electrical current is actually made of a. static charges. b. moving electrons. c. high or low voltage. d. resistance within a circuit.