Atoms of elements in the same group have the same number of [Blank] This is why they have similar chemical properties.

A. Protons

B. neutrons

C. Valence electrons

Explain how a charged amber rod can lift tiny bits of paper despite being under the gravitational force of the entire mass of the earth.

An experiment tests the effect of one thing on another using?

Two types of specialized fingerprint

Which statements describe a digital signal? Check all that apply. The signal is made of numbers. The signal degrades over time. The signal is continuous. The signal is not continuous. The signal picks up noise.

For an isothermal process, the work done by or on a system of ideal gas is equal to the change in what?

What is the name given to the system of units use the united States?

The average distance to the stars that make up the constellations in the night sky around the sun is about

What happen when a light from the sun passes through any type of matter

A projectile is launched at ground level with an initial speed of 53.0 m/s at an angle of 35.0° above the horizontal. It strikes a target above the ground 2.50 seconds later.

A 2650-lb car is traveling at sea level at a constant speed. its engine is running at 4500 rev/min and is producing 175 ft-lb of torque.