Aneutral metal comb is held near an object with a negative charge.

what happens to the comb?

a. the comb is charged by contact.

b. the comb is charged by friction.

c. the comb is charged by static discharge.

d. the comb is charged by induction.

Abaseball picther can throw a ball at about 90 miles per hour, v = 40 m/s, on solid rock ground. we now put him into space. when he throws the ball, which weighs mb = 0.15 kg moves away from himat the same speed. how long does it take the ball thrown in space to travel the 30 meters to the batter? he weighs mp = 100kg

What property is a characteristic of a substance that can be observed and does not change the identity of the substance

How to tell if a molecule is polar or nonpolar with electronegativity