State one difference between a reversible change and an irreversible change

What three characteristics describe the energy of a wave. 1. Frequency, the crest, and trough. 2. Speed, amplitude, and medium. 3. Frequency, wavelength, and mediun. 4. wavelength, amplitude, and frequency.

An example for curvilinear motion.

Anna drew a diagram to compare the strong and weak force. Which labels belong in the areas marked X, Y, and Z?

What is the dierence between a mechanical wave and an electromagnetic wave?

Which of these would be a good model to demonstrate the fact that the galaxies are moving apart as the universe is expanding?

From whom should a departing VFR aircraft request radar traffic information during ground operations?

A stone is thrown at an angle of 30.0 degrees above the horizontal from the top edge of a cliff with an initial speed of 15 m/s. A stopwatch measures the stone's trajectory time from the top of the cliff to the bottom at 6.30 s.

A particular solid is electrically charged after it is rubbed, but it is not known whether its charge is positive or negative. How could you determine which charge it has by using a piece of plastic and fur?

A mass of 5 kg is moving at 5 m/s when it collides with another mass of 2 kg moving in the same direction at 2 m/s. After the collision they become bonded together. What is the final velocity of the two masses together? 2.22 m/s 6.23 m/s 3.56 m/s 4.

The process of developing a sense of identity during adolescence was highlighted by