A trunk is dragged 3 m across an attic floor by a force of 2 N. The work done on the trunk is joules. Assuming the floor to be level, the gain in potential energy is joules.

Does the ear drum vibrates when struck by sound waves and directly sends a message to the brain that is then recognized as sound?

You are in IMC and have two-way radio communications failure. If you do not exercise emergency authority, what procedure are you expected to follow?

You drop a ball from rest and simultaneously shoot a second, identical ball horizontally from the same height as the first ball. If there is no air resistance, which ball hits the ground first?

The sum of the digits of a two-digit number is 6. When the digits are reversed, the number decreases by 18. Find the original number.

If Earth's axis were tilted by 5° instead of its actual tilt, how would the seasons be different than they are currently?

How many hops does a kangoroo do in 1 day

What are the average velocity and average acceleration of the tip of a 2.4 cm long hour hand of a clock?

What is the number one and most important rule to remember in soccer?

Why are convection currents; why are they hotter and colder parts of earth

A swimmer is swimming to the left with a speed of 1.0 m/s when she starts to speed up with constant acceleration. The swimmer reaches a final speed of 2.5 m/s over a distance of 5.0 m. How long did the swimmer take to speed up to 2.