Which of the following pairs of terms directly relates to the actual brightness of a star?

A. absolute magnitude and luminosity

B. apparent magnitude and luminosity

C. size and luminosity

D. absolute magnitude and apparent magnitude

Which is NOT a property of gold? Select one: a. rare b. malleable c. tarnishes d. corrosion resistant

a block of mass 10 kg is kept on a horizontal surface of coefficient of friction 0.1 if horizontal force of 5N acts on body then fractional force is equal to

While the ball flies through the air, which forces act on the ball? Neglect air resistance. While the ball flies through the air, which forces act on the ball? Neglect air resistance. (a) The force of the golf club acting on the ball.

1. How many electrons does the K level of an atom hold?

Why are arrows of varying lengths used to represent forces?

If you hit a wall, will the force that you exert on the wall be greater than, or less than, or equal to the force that the wall exerts on you. Explain your answer.

Which waves can u see

How does the weight of a rocket affect the height and distance?

A disturbance that moves through space and time is called a ___.

Angela sees a puzzle that uses a board with 20 holes drilled into it. There are 18 pegs in the holes, and the goal of the puzzle is to move the pegs by hopping them into the open holes until both holes are at one end of the board.