A basic observation of a star is how bright it appears. This brightness is known as the star's

A. luminosity.

B. absent magnitude.

C. apparent magnitude.

D. absolute magnitude.

Two observers, one in northern Canada and the other in Australia, are looking at the Moon on the same day. The observer in Canada sees a Third Quarter Moon. What does the observer in Australia see?

What conclusion can be drawn from the statement that an element has high electron affinity, high electronegativity, and a high ionization energy? A) The element is most likely from Group 1A or 2A and in period 1 or 2.

In England, standard household voltage is 240 volts. If you brought your own hair dryer on a trip there, you would need a transformer to step down the voltage before you plug in the appliance.

Describe at least two different objects that you think are magnetic and why do you think this objects are magnetic

G=fr²/m, m² where G is the gravitational constant "r" is the distance between two masses "m" and "m²" and "f" is the gravitational force between two masses

During a free fall Swati was accelerating at - 9.8m/s2. After 120 seconds how far did she travel? Use the formula = 1/2 * t2 to solve your answer. (Do not forget to keep units in your answer.)

How do sinkholes form?

What is the result of wave motion on water particles? A.) Water particles are pushed forward as they move up and down. B.) Water particles barely move forward as they move up and down. C.) Water particles are pushed down as they move side to side. D.

Nitric acid (HNO3) and potassium hydroxide (KOH) combine in a neutralization reaction to form water and a salt. Which of the following correctly identifies the salt that is produced? OHK NOK2 KNO3 HOH

When the speed of something is the same what is that called