Iwill mark brainliest
which of the following is true for sound waves?

group of answer choices

they require a medium.

they can travel in a vacuum.

they cannot travel through liquids

they are unrelated to vibrations.

Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 ° angle with the vertical, what is the net charge on the ball?

Which best describes the difference between internal and thermal energy?