Answer:50%
Explanation: put it you are in a hurry
Answer:
20 N
Explanation:
The gravitational force for block B will be given by mg where m is mass of the block and g is gravitational constant, in this case taken as
Substituting 2 Kg for m we obtain
Fg=2*10=20 N
Therefore, the gravitational force exerted by block B is nearly 20 N and acts downwards
c. Electrons flow from sphere B to sphere
___ 13. Most electrical wires are covered with plastic or rubber. The wires are covered with plastic or rubber because
those materials
a. are conductors of electricity. c. are not conductors of electricity.
b. make complete electric circuits. d. make the electricity move quickly.
____ 14. The loss of static electricity as electric charges transfer from one object to another is called
a. friction. b. conduction. c. induction. d. static discharge.
Explanation:
The frequency of a wave is inversely proportional to its wavelength. That means that waves with a high frequency have a short wavelength, while waves with the low frequency have a longer wavelength.
Li and F would create LiF which would make an ionic compound because Li is a metal and F is a nonmetal.
Metal + Nonmetal = Ionic Compound