1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tatiana [17]
4 years ago
13

The speed of a bullet of mass 20 g is 216 kilometre-per-hour what is kinetic energy in joules​

Physics
1 answer:
chubhunter [2.5K]4 years ago
3 0

Answer:

2160joules

Explanation:

M = 20g = 0.02kg

V = 216km/h

K.E = 1/2 m (v)^2 = 1/2 × 0.02 × 216

K.E = 2.16kj

1kj = 1000joules

2.16kj = 2160joules

You might be interested in
What are the principals behind Newtons first and third law?​
koban [17]

Answer:

First law: An object either remains at rest or continues to move at a constant velocity, unless acted upon by an external force. (i.e. Objects in motion tend to stay in motion. Objects at rest tend to stay at rest.)

Third law: When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in direction on the first body.

Explanation:

7 0
3 years ago
A person on a bike (m=90 kg) is traveling 4 m/s at the top of a 2 m hill. what is the bikers total energy?
Harlamova29_29 [7]

Answer:

720 J

Explanation:

Kinetic Energy = 1/2 * m *(v*v)

M= 90 kg

V=4 m/s

KE=1/2 * 90 * (4*4)

KE= 45*16= 720 J

5 0
3 years ago
Read 2 more answers
calculate the kinetic energy of a car with a mass of 500kg traveling at a velocity of 10m/s^2 north. A) 2,500j B) 25,000j C) 50,
Arte-miy333 [17]
The correct answer would be A) 2,500j
8 0
3 years ago
a) Viewers of Star Trek hear of an antimatter drive on the Starship Enterprise. One possibility for such a futuristic energy sou
lina2011 [118]
Charge me and do I name for meters
3 0
3 years ago
What is the formula to determine the mass of the Earth?​
pychu [463]

Answer:

Here ya gooooooooooooooo

Explanation:

sefamchsgaevfdkahsgevfjahgswevfjahsgefvjashgvf

5 0
3 years ago
Other questions:
  • After catching the ball, Sarah throws it back to Julie. However, Sarah throws it too hard so it is over Julie's head when it rea
    5·1 answer
  • Someone please help me
    13·1 answer
  • 16. A block is sitting on a ramp tilted from horizontal. The block is just about to slide. T he angle of the ramp relative to ho
    15·1 answer
  • The best represents the law of conversation of mass? help me plssss
    10·1 answer
  • Describe the relationship of the Earth’s lithosphere to the asthenosphere.
    13·2 answers
  • If you walk 1.4 km north and then 4.8 km east, what are the magnitude and direction of your resultant displacement?
    15·1 answer
  • What is the emf produced in a 1.5 meter wire moving at a speed of 6.2 meters/second perpendicular to a magnetic field of strengt
    6·2 answers
  • Hello there!
    7·2 answers
  • When two forces are the same strength but act in opposite direction , they are called
    13·1 answer
  • Did it seem the Law of Reflection held for planar waves? How could you check to be sure?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!