If a glass rod is rubbed with a dry cloth, what kind of charge would it be:

A) positive, due to extra protons

B) negative, due to protons lost

C) positive due to electrons lost

D) negative, due to extra electrons

Which of these characteristics can only be attributed to a wave of red light?

Why does iceland experience major volcanic activities?

Why does a moving object come to a stop on a frictional surface?

Suppose an astronaut drops a feather from 1.2 m above the surface of the Moon. If the acceleration due to gravity on the Moon is 1.62 m/s2 downward, how long does it take the feather to hit the Moon's surface? s

Which statement describes the relationship of resistance and current? Resistance is directly proportional to current because R=v/I.

A galilean telescope adjusted for a relaxed eye is 36cm long. If the objective lens has a focal length of 40cm, what is the magnification?

If a car goes along a straight road heading east and speeds up from 45 ft/s to 60. ft/s in 5 sec, calculate the acceleration

To generate higher profit margins, producers must work to increase their total supply. increase their total expenses. decrease their customer base. decrease their production costs

Solar energy isn't usually used as the only power source for a reason because what

What particle can be stopped by skin