If 10 N force is depressed a typewritter key through 10 cm in 1 sec. Find average power?

Which of the following statements is true about the movement of sound waves? A. they can only travel through a vacuum B. they can travel through air only C. they can only travel through a medium D. they travel fastest in gaseous mediums

The sound produced by the loudspeaker in the drawing has a frequency of 11999 Hz and arrives at the microphone via two different paths. The sound travels through the left tube LXM, which has a fixed length.

What length of a 22 gauge american wire gauge copper wire is needed to make a resistance of 500 ohm?

A solution of an acid in water has apH of 4, which is slightly acidic. Is this a solution of a weak acid?

A spring has a natural length of 28 cm. If a 27-N force is required to keep it stretched to a length of 32 cm, how much work W is required to stretch it from 28 cm to 30 cm? (Round your answer to two decimal places.) W = 13.

R,=4.00 R, = 1000.00 MM V = 120 V I What is the total resistance for the circuit in Figure 2?

Which describes the relationship between friction and IMA for a simple machine?

What measurement can be used to determine the stability of the atmosphere?

What is the kinetic energy of a 1kg ball that moves at 5m/s

A physics professor demonstrates the Doppler effect by tying a 600 Hz sound generator to a 1.0-m-long rope and whirling it around her head in a horizontal circle at 100 rpm.