Which is true about the total mechanical energy of a pendulum in the absence of friction?

1. It exhibits constant velocity motion.

2. It exhibits simple harmonic motion.

3. It exhibits circular motion.

4. It exhibits only upward motion.

A swing has a period of 3 seconds. what is it's frequency?

A 60 kg zebra is traveling 8 m/s east. What is the zebra's momentum? kg-m/s

If jim exerts a force of 2.0 N on a shopping cart, what force does the shopping cart exert on jim?

A motorbike travels 45 miles in 15 minutes, what is its speed (hint change the minutes to hours!)

We know the frequency range of certain sounds are: 400-560 Hz, what are the ranges of wavelength in meters when the signal transmits in air? what about in water? (In dry air at 20oC the speed of sound is 343.

Lightning heats the surrounding air to

Is a broom an example of a wedge?

Use your knowledge of the state of matter and the other physical properties of matter to write an explanation for what may have caused the following situation: Although it hasn't rained in a week, every morning the grass and the car windows are wet.

What is three example of technology

Lisa has three classes that each last 50 minutes qhat ia the total nuber of minutes of minutes of the three classe?