An object is moved closer to a lens. Does the focal length of the lens increase, decrease, or stay the same?

What are you good at and hobbies?

You check a barometer and observe that the air pressure has been dropping all day. Is tonight's weather more likely to be calm or stormy?

A circus acrobat is shot out of a cannon with an initial upward speed of 34 ft/s. if the acrobat leaves the cannon 4 ft above the ground, how long will it take him to reach a net that is 8 ft above the ground

Two fluorine atoms form a compound with a covalent bond. What is this compound called?

At the outer edge of a rotating space habitat, 130 m from the center, the rotational acceleration is g.

A car's speedometer reads 20 m/s after accelerating, from a standing start, for 25s. What was the magnitude of its acceleration?

What happens to the period of a pendulum and the period of a spring as the amplitude of the oscillation increases? Briefly give an explanation for this relationship.

The element that is most abundant in earth is

Your car travels 600 miles in 6 hours. You stop the car for lunch for 1 hour and then you continue on your trip for another 14 miles and finish the entire trip in 8 hours. What was your car's average speed while you were driving?

Speed is a vector quantity