11. Which of the following phenomena is taking place when sound waves are reflected from a surface along parallel lines? A. Refracting B. Absorption C. Focusing D. Diffusion

What is meant by absolute time? Why was it not noticed before the development of the special theory of relativity?

What is the shape of the orbit of satellites? helical elliptical aphelion perihelion

How does the density of the metal in the crushed can compare with the metals density before the can was Crushed

multiply or divide to make this English distance conversion. 174 inches = ___ feet (14.5, 58, 2,088, 23)

A-3.07 μC charge is placed at the center of a conducting spherical shell, and a total charge of + 7.25 μC is placed on the shell itself. Calculate the total charge on the outer surface of the conductor.

Thomsonâs experiment is credited with the discovery of which particle?

When you drop a pebble from height h, it reaches the ground with kinetic energy k if there is no air resistance. from what height should you drop it so it will reach the ground with twice as much kinetic energy?

Explain two ways that technology has had a positive impact on the environment and two ways that it has had a negative impact on the environment.

A rockets initially at rest, it steady gains speed at a rate of 10m/s^2 for 4.6s during take off. What was the rocket's top speed?

What do you mean by kintic theory of matter