How much power is required to do 40 J of work on an object in 5 seconds?

A. 0 W

B. 5 W

C. 8 W

D. 40 W

E. 200 W

Which planets have the largest accelerations of gravity? a. Mercury, Venus, Earth c. Pluto, Venus, Jupiter b. Jupiter, Neptune, Saturn d. All planets have the same acceleration of gravity.

Acharged particle moving through a magnetic field at right angles to the field with a speed of 36.2 m/s experiences a magnetic force of 7.38x104 N.

What are the chances of getting struck by lightning?

Which of the following forms an interference pattern when directed toward two suitably-spaced slits? a. electrons b. Sound c. light d. all of these enone of these

When did the solar system develop

A major obstacle to developing good human relations is that

4.) An apartment building is on fire and a guy is trapped on the fire escape ladder. There is a dumpster that is 6.3m away and is filled full of trash, and he is 7m above it.

Calculate the temperature of and power-per-area radiated from a blackbody if the spectral intensity density peaks at (a) gamma rays, λ = 1.50*10-14 m; (b) x rays, 1.50 nm; (c) red light, 640 nm; (d) broadcast television waves, 1.

How has increased energy use associated with scientific advancements affected society? a. It has led to an increase of the concentration of atmospheric carbon dioxide. b. It has led to an increase in hazardous wastes from mining operations. c.

Water is moving with a speed of 5.7 m/s through a pipe with a cross-sectional area of 4.8 cm2. The water gradually descends 9.2 m as the pipe increases to 8.8 cm2. (a) What is the speed at the lower level? (b) If the pressure at the upper level is 1.