Ordinary forces, such as pushes, pulls, normal forces and ...

[nramada]

Ordinary forces, such as pushes, pulls, normal forces and friction, are considered to be due to the
 
  A)
 
  gravitational force.
  B)
 
  electromagnetic force.
  C)
 
  strong nuclear force.
  D)
 
  weak nuclear force.
  E)
 
  contact force.

Question 2

What is the period of a wave described by the following function: y(x,t) = (2.00 m)cos(3.00 m-1)x + (5.00 s-1)t
 
  A)
 
  0.333 s
 
  B)
 
  0.200 s
 
  C)
 
  5.00 s
 
  D)
 
  1.26 s
 
  E)
 
  2.09 s

[jessicaduplan]

Answer to Question 1

B

Answer to Question 2

D

[nramada]

Gracias!

[Joy Chen]

Excellent