It took 3.3 s for a student to move a 6.4 N chair a distance of 10.7 m. How much power did she use?

As sources of electrical power, windmills now account for only about 2,500 megawatts nationwide, but production is almost expected to double by the end of the year, which would provide enough electricity for 1.3 million households. a.

The equilibrium price will rise, but equilibrium quantity may increase, decrease, or stay the same if a. demand increases and supply decreases. b. demand increases and supply increases. c. demand decreases and supply increases. d.

A wave is moving at the rate of 40 cm/s. Its wavelength is 8 cm. What is the frequency of the wave? 5 Hz 320 cm 320 Hz 5 cm

How would you determine how much error there is between a vector addition and the real results

Based on Archimedes' principle, the greatest buoyant force an object can experience in water is determined by which quantity? A. The object's mass B. The object's chemical properties C. The object's volume D. The object's pressure

Why does a balloon filled with helium rise while a balloon filled with an equal volume of average atmospheric air does not? A. Helium has no mass, but air does. B. Helium increases the balloon's mass more than air. C.

Consider the following controls in an automobile in motion : gas pedal, brake, steering wheel. what are the controls in this list that cause an acceleration of the car?

What material are oil pipelines made from?

3/129 A 175-lb pole vaulter carrying a uniform 16-ft, 10-lb pole approaches the jump with a velocity v and manages to barely clear the bar set at a height of 18 ft. As he clears the bar, his velocity and that of the pole are essentially zero.

A few years ago, Serena Williams dived to hit a tennis ball right after it bounced off the ground. The ball bounced on the ground 10.3 m from the net, and after Serena hit the ball it flew over the 0.