The kinetic energy of a proton is 80 of its total energy. What is ...

[charchew]

The kinetic energy of a proton is 80 of its total energy. What is the momentum in kgm/s of the proton?
 
  A)
 
  5.0  10-19 kgm/s
  B)
 
  2.5  10-19 kgm/s
  C)
 
  5.0  10-18 kgm/s
  D)
 
  2.5  10-18 kgm/s
  E)
 
  1.5  10-19 kgm/s

Question 2

A 1500-kg car accelerates from 0 to 25 m/s in 7.0 s. What is the average power delivered by the engine? (1 hp = 746 W)
 
  A)
 
  50 hp
 
  B)
 
  60 hp
 
  C)
 
  70 hp
 
  D)
 
  80 hp
 
  E)
 
  90 hp

[chem1s3]

Answer to Question 1

D

Answer to Question 2

E

[charchew]

TYSM

[diana chang]

Thanks for the timely response, appreciate it