You do 1200J of work with gears. If the gears do 1000J of work, what is the efficiency of the gears?

Compute the temperature of an object which has peak emissions at each of the following wavelengths. Note what kind of light it is (by name of type). (a) 3 meter, (by) 3 cm, (x) 500 nm, (d) 1 nm.

Equal and opposite forces that act on the same object are called

The diffraction limit is a limit on: The diffraction limit is a limit on: A telescope's size. A telescope's angular resolution. A telescope's spectral resolution.

What is the process by which people form intuitive ideas about other people, based on fleeting information they obtained either directly or indirectly?

A stone is dropped from rest at the top of a mine shaft. it takes 15 s for a stone to fall to the bottom of a mine shaft. how deep is the shaft?

5. While a gas does 500J of work on its surroundings, 800J of heat is added to the gas. The mass of the gas is 300 grams, specific heat capacity is 1000 Joules/kg and the work is done keeping pressure constant.

A transparent film laminated to a fabric is identified in the study material as a. stretch fabric. b. PVC. c. a skin. d. two-faced fabric

Light from the sun travels through space to Earth's atmosphere. Which will light waves do when they move from empty space into matter made up of different gases? A. move at the same speed B. move faster as they transmit C. slow down and refract D.

A 12.5 kg box sliding on a frictionless flat surface tuns into a fixed spring which compresses at a distance x = 14.1 cm. the spring constant is 94.5 kN/m Find the initial speed of the box

An earth scientist who studies hydrosphere