The positron is A) the anti-particle to the proton. B) ...

[nevelica]

The positron is
 
  A) the anti-particle to the proton.
  B) identical to the neutron but with a positive charge.
  C) one of the three particles that go together to make a proton.
  D) only hypothetical at the present time.
  E) the anti-particle to the electron.

Question 2

A 10-kg object is hanging by a very light wire in an elevator that is traveling upward. The force that the wire exerts on the object is measured to be 75 N. What are the magnitude and direction of the acceleration of the elevator?
 
  What will be an ideal response?

[Pswine]

Answer to Question 1

E

Answer to Question 2

2.3m/s2, downward

[nevelica]

Excellent

[patma1981]

Gracias!