A drop of water has an electric charge of -1.6 x 10^-16 C. How many excess electrons does this drop of water have?! (Let the elemental charge: 1,6.10^-19)
a) 100
b) 300
c)625
d) 1000
e)1600

if you steal my POINTS you will be reported

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.

Frequency of electromagnetic waves that a radio station is assigned is called