A 1938 nickel has a diameter of 21.21 mm, a thickness of 1.95 mm, ...

[jace]

A 1938 nickel has a diameter of 21.21 mm, a thickness of 1.95 mm, and weighs 0.04905 N. What is its density?
 
  A) 1.37  10-4 kg/m3
  B) 1.82  103 kg/m3
  C) 19.3  103 kg/m3
  D) 3.63  103 kg/m3
  E) 7.26  103 kg/m3

Question 2

Two wheels with fixed centers are in contact with each other and rotate without slipping. Wheel A has a radius of 12.0 cm and is rotating with an angular speed of 35.0 rad/s. Wheel B has a radius of 17.0 cm. What is the angular speed of wheel B?
 
  A) 49.6 rad/s
  B) 24.7 rad/s
  C) 5.83 rad/s
  D) 4.97 rad/s
  E) 12.4 rad/s

[bbburns21]

Answer to Question 1

E

Answer to Question 2

B

[jace]

Excellent

[nanny]

YES! Correct, THANKS for helping me on my review