If a platinum atom has 78 protons. How many electrons does it contain?

Why is it important to understand your strength and weakness

Sound waves are created by which of the following: A.) Vibrations of particles in the air B.) Vibrations in your vocal cords C.) Vibrations of musical instruments D.) All of the above

Which of the following best describes the electromagnetic spectrum? A. includes a small band of visible radiation B. involves only high frequency waves C. consists mostly of wavelengths of colored light D. travels in a pattern of particle motion

The fact that the Voyager spacecraft continues to travel out of the solar system, even though its rockets have no fuel, is an example of

A soccer player extends her lower leg in a kicking motion by exerting a force with the muscle above the knee in the front of her leg. she produces an angular acceleration of 37.5 rad/s2 and her lower leg has a moment of inertia of 0.750 kg · m2.

Approximately how much electrical energy does a 5-W light bulb convert to radiant or thermal energy in one hour

If a clock expends 2 W of power from a 1.5 V battery what amount of current is supplying the clock?

The rectangular plates in a parallel-plate capacitor are 0.063 m * 5.4 m. A distance of 3.5 * 10-5 m separates the plates. The plates are separated by a dielectric made of Teflon, which has a dielectric constant of 2.1.

What connection does salt have with acids and bases?

All of the following are types of telescope except