You can tell whether a projectile is going upwards or downwards ...

[TVarnum]

You can tell whether a projectile is going upwards or downwards from the sign of __________.
 Fill in the blank(s) with correct word

Question 2

Which of the following particles has not yet been detected (even though most scientists consider its existence to be likely)?
 a. The pion.
  b. The muon.
  c. The graviton.
  d. Intermediate vector bosons.
  e. The positron.

[bob]

Answer to Question 1

the vertical component of velocity

Answer to Question 2

c

[TVarnum]

Thanks for the timely response, appreciate it

[epscape]

Gracias!