Which of the following is an example of diffraction? A. Hearing a band play through an open doorway without seeing them. B. Sitting in a room and watching a band play. C. Playing in a band. D. None of these examples show diffraction.

What is the name and degree of the line of longitude that passes through greenwich england

Which uses direct current?

Absolute magnitude and apparent magnitude are the same thing. True False

A hockey player uses her hockey stick to exert a force of 6.81 N on a stationary hockey puck. The hockey puck has a mass of 165 g. What is the acceleration of the hockey puck? a. 0.13 m/s2 b. 11.3 m/s2 c. 21.3 m/s2 d. 31.3 m/s2 e. 41.3 m/s2

Forces can be added together only if they are? a. acting on the same object. b. balanced forces. c. unaffected by gravity. d. substantial.

Hat is a scientific theory? Make up your own scientific theory.

Which of the following is an example of a velocity? O A. 12 m/s O B. 45 km/hr south O C. 55 km/hr D. - 5 m/s2 east

What was the total weight (lbf) of chocolate in the vat? the specific gravity of chocolate is approximately 1.24?

You are in the lab and are given two rods set up so that the top rod is directly above the bottom one. The two straight rods 50-cm long are separated by a distance of 1.5-mm each with 15 A of current passing through them.

What is the explanation for feather beds being warm