What is the approximate wavelength of a light whose second-order dark band forms a diffraction angle of 15.0° when it passes through a diffraction grating that has 250.0 lines per mm?

When earth is between the moon and the sun how is the earth seen? A. full moon B. half moon C. quarter moon D. third quarter moon

When measuring current, always place the meter in a. series with the circuit. c. the highest DC volts position. b. the highest AC volts position. d. parallel with the circuit.

A person runs with a constant velocity of 1.2 m/s for 30 seconds. how far do they travel?

Calculate δe, if the system absorbs 7.24 kj of heat from the surroundings while its volume remains constant (assume that only p-v work can be done). express your answer using three significant figures.

if we decrease the amount of force and keep all other factors the same what will happen to the amount of work

Which of the following is the most accurate statement concerning the properties of matter? a. they can be written as symbols b. they can be observed and measured c. they cannot be tested or verified d. they change with the amount of matter present

Danilo is sliding down a slide. What forces are acting on him as he slides

If you want your investment or savings account to be easily turned into cash without losing its value, you should consider the?

What is the definition of "gravitational potential energy"?

A number of food chains linked together