helloadbiufbisa123 helloadbiufbisa123
  • 02-06-2021
  • Physics
contestada

A bullet of m=30g reaches 900m/s in a 550mm long gun barrel. What total energy does the bullet have upon exiting the gun? *
A)12150000J
B)810000J
C)12150J
D)14850000J

show your work please

Respuesta :

machmillerg
machmillerg machmillerg
  • 02-06-2021

Answer:

C)12150J

Explanation:

KE = (1/2)(m)(v²)

KE = .5*30g(1kg/1000g)*(900m/s)²

KE = 12,150J

Answer Link

Otras preguntas

If 3x – 10 = 17, what is the value of 6x + 20 ?
A rectangle has an area of 30 square units and a perimeter of 34 meters.what are the dimensions of this rectangle
2/5+4/7 estimate: decide if each addend is closer to 0 or closer to 1. then estimate the sum or difference. this is a fraction question.
type the requested verb form of this verb. future progressive tense: soar
which accurately describes a tangent
How many months is 0.75 of a year
An unbalanced force of 25 N, E, is applied to a 12-kg mass. What is the acceleration given to the mass?
How long does water evaporation take? What factors influence it?
what is the term for the condition where red blood shrivels?
Why can't plants and animals use the nitrogen directly from the atmosphere? Answer A.There is not enough of it in the air. B.Nitrogen gas contains the element i