How do you find input energy with only the efficiency and output energy given?

A sound wave in air has a pressure amplitude equal to 3.92 x 103 N/m2. Calculate the displacement amplitude of the wave at a frequency of 9.2 kHz. (Note: Use the 1.20 kg/m3; the speed of sound in air is v 343 m/s.

Which celestial body is the smallest: solar system, jupiter, galaxy, sun?

Which characteristics of elements do you think are part of the organization of the periodic table? You may select more than one answer. A. Quantity of the element on Earth B. Size of the element C. Order of discovery of the element D.

The staples inside a stapler are kept in place by a spring with a relaxed length of 0.116 m. if the spring constant is 46.0 n/m, how much elastic potential energy is stored in the spring when its length is 0.146 m?

following statement supports which theory? "Astronomers have observed protoplanetary disks around distant newborn stars." Big Bang theory Nebular theory Cell theory String theory

How do mountins building and volcanos relate to plate motion at convergent boundaries

A 20kg box is dropped 13m. how much work is done

Suppose a person whose mass is m is being held up against the wall with a constant tangential velocity v greater than the minimum necessary. Find the magnitude of the frictional force between the person and the wall

A ball is being rolled by a normal push of 1000N. it is opposed by friction which has a force of 0.3kN and air resistance which has a force of 23N. Calculate the resultant force.

Consider a Young's two-slit experiment in which the wavelength of light is 37% smaller than the distance between the slits.