The Periodic Table of Elements is organized by the number of:

protons

electrons

neutrons

neutrons and protons

How to find the number of field lines passing through

Which is an example of projectile motion? a person throwing a rock a child swinging on a swing set an athlete running on a track a teacher picking up a pencil

How was helium first discovered? mining of the radioactive element uranium using spectral analysis of the Suns' emission spectra o hubble obtaining samples from explosions off the surface of the sun deep sea mining off the coast of Texas

A piece of cobalt has a mass of 41 g and is initially electrically neutral. It is then charged with q = + 0.6 µC.

How many neutrons are in calcium

What is the frequency of 20 mm microwaves? A) 100 MHz B) 400 MHz C) 15 GHz D) 73 GHz E) 98 GHz

A measure of how much pulling, or tension, a material can withstand before breaking is - A. hardness. B. brittleness. C. tensile strength. D. malleability.

How work done against gravity can be expressed?

An electron is acted on by two electric forces, one of 2.7*10-14 N acting upward and a second of 5.8*10-14 N acting to the right. What is the magnitude of the electric field at the electron's location?

A satellite on a Low Earth Orbit is flying with a speed of 7.65 km/s. The vertical component of the Earth's magnetic field is 35.3 μT at the current location of the satellite.