A 60.0-kg mass person wishes to push a 100-kg mass box across a ...

[cdr_15]

A 60.0-kg mass person wishes to push a 100-kg mass box across a level floor. The coefficient of static friction between the person's shoes and the floor is 0.700.
 
  What is the maximum coefficient of static friction between the box and the floor such that the person can push horizontally on the box and cause it to start moving?
  A)
 
  0.375
 
  B)
 
  0.600
 
  C)
 
  0.420
 
  D)
 
  0.625
 
  E)
 
  0.700

Question 2

Give at least one example of each of the following: (a) longitudinal standing wave. (b) transverse standing wave.
 
  What will be an ideal response?

[jasonq]

Answer to Question 1

C

Answer to Question 2

(a) a sound wave in an open ended pipe
(b) vibrating string on a violin

[cdr_15]

TY

[jasonq]

You're welcome