A blank is the small number to the lower right of the chemical symbol. It tells how many atoms of the element are present in the blank

Two identical stunt professionals A and B stand on the roof of building 1. Person A steps off of the roof and falls vertically onto the solid ground.

When gravity is the only force working on an object the object is in?

Let's say you have two tuning forks which are supposed to produce the same frequency, 512 Hz. One is of good quality, but the other is cheaply made and vibrates at 510 Hz. If you bonk them both how many beats per second will you hear

Describe how glacial deposition occurs.

A sound wave travels through water. What best describes the direction of the water particles? The water particles move perpendicular to the source of the sound wave.

Two abiotic factor that effect an ecosystem are;

Which of the following is explained by general relativity? A. How massive stellar objects can form a lens. B. Why moving muons decay more slowly than stationary ones C. Why atomic clocks tick more slowly when in motion D.

Imagine that you're observing a collision. Which action would allow you to determine whether the collision is inelastic? A. Measure the force of impact. B. Observe whether the colliding objects change their shape. C.

When compared to other types of waves, electromagnetic waves differ because they are Select one: A. a form of energy. B. able to travel through a vacuum. C. all visible. D. able to move particles in a medium.

The velocity selector in in a mass spectrometer consists of a uniform magnetic field oriented at 90 degrees to a uniform electric field so that a charge particle entering the region perpendicular to both fields will experience an electric force and