Electrically inert metal ball A is connected to the ground by a wire. What happens to the charge of this ball if you bring a negatively charged ball B near it. Justify your answer.

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

Engines for propeller-driven aircraft are limited in their maximum rotational speed by the fact that the tip speed of the propeller must not approach the speed of sound in air (mach i). taking 6 ft as a typical diameter for a propeller of a light airplane and 1100 fils as the speed of sound, find the upper limit on the rpm (revolutions per minute) of the propeller shaft.

Avector a⃗ has a length of 8.6 m and points in the negative x direction. find the x component of the vector −3.7a⃗ .