What is the speed of sound in air at 30 degree C?

A football is kicked at ground level with the speed of 32 m/s at an angle of 40 degrees to the horizontal. how much later does it hit the ground?

In a circuit, where do electric charges go once they have left the voltage source and traveled along the wires?

If the velocity of a body changes from 13 m/s to 30 m/s while undergoing constant acceleration 2hats the average velocity of the body

A bicycle travels 15km in 30 mins. What is the average speed? Show all work to support answer.

The components of vector A and vector B are: Ax=+7.6 Bx=+15.2 Ay=-9.2 By=-18.4 which equation describes the relationship between the two vectors? A. B=A + (2,0) B. B=A C. B=7.6A D. 68

A 2.25-kg block is released from rest on a ramp of height h. when the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 15.

Which of the following are steps for balancing chemical equations? Check all that apply. ] A. Multiply the reactants to get the products. B. Change subscripts. O C.

1. Why does the water vapour in clouds condense? 2. Explain why you can see clouds but not see the water vapour in the air

What are some similarities between electricity and gravity?

What's the difference between solids and liquids?