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
Aneli [31]
3 years ago
9

Times will the kinetic one

Physics
1 answer:
mixer [17]3 years ago
3 0

Answer:

The new kinetic energy is 9 times of the initial kinetic energy.

Explanation:

The kinetic energy of an object is given by the formula as follows :

E=\dfrac{1}{2}mv^2

Where

m is mass and v is speed of the body

If the speed of the body is tripled. Let v' is the new speed, v' = 3v. The new kinetic energy is E' and it is given by :

E'=\dfrac{1}{2}mv'^2\\\\\text{Put v' = 3v}\\\\E'=\dfrac{1}{2}m\times (3v)^2\\\\=\dfrac{1}{2}m\times 9v^2\\\\=9\times (\dfrac{1}{2}mv^2)\\\\E'=9\times E

Hence, the new kinetic energy is 9 times of the initial kinetic energy.

You might be interested in
What is gravitational constant?<br>​
WITCHER [35]
The constant in Newton's law of gravitation relating gravity to the masses and separation of particles, equal to 6.67 × 10-11N m2 kg-2.
6 0
3 years ago
As the rate of radioactive decay becomes smaller, half-life becomes ____.
Marina86 [1]

Answer:

Larger

Explanation:

8 0
3 years ago
what does the density of an object tell you about the molecular arrangement of the atoms in an object
Andrews [41]

Answer:

If the density of the object is high its molecular arrangement is compact while if the density is lows its molecular arrangement isnt that compact

4 0
3 years ago
Investigators are most likely to use the case history method when they study
user100 [1]
Investigators are most likely to use the case history method when they study <span>a rare behavior or an unusual person.
They do this to obtain some sort of basis that they could use as a pointer to make their decision regarding the similar case (after figuring out the difference in situation between each period)</span>
4 0
3 years ago
A man-made satellite orbits the earth in a circular orbit that has a radius of 32000 km. The mass of the Earth is 5.97e 24 kg. W
Gwar [14]

Answer:

= 3521m/s

The tangential speed is approximately 3500 m/s.

Explanation:

F = m * v² ÷ r

Fg = (G * M * m) ÷ r²

(m v²) / r = (G * M * m) / r²

v² = (G * M) / r

v = √( G * M ÷ r)

G * M = 6.67 * 10⁻¹¹ * 5.97 * 10²⁴ = 3.98199 * 10¹⁴

r = 32000km = 32 * 10⁶ meters  

G * M / r = 3.98199 * 10¹⁴ ÷ 32 * 10⁶

v = √1.24 * 10⁷  

v = 3521.36m/s

The tangential speed is approximately 3500 m/s.

8 0
3 years ago
Read 2 more answers
Other questions:
  • a gas exerts less pressure when it has a a. smaller volume b. lower temperature c. higher temperature d. two of the above
    14·1 answer
  • When the car carrying the unbelted driver crashes, what brings the driver to a stop
    9·1 answer
  • Stars only emit light within the visible spectrum of the electromagnetic spectrum.
    14·1 answer
  • An object has a relativistic momentum that is 8.30 times greater than its classical momentum. What is its speed?
    7·2 answers
  • Lisa sees the image below as she researches the behavior of light.
    12·2 answers
  • How is the modern periodic table organized as one goes across a row from left to right?
    8·2 answers
  • a ball dropped from rest falls freely intil it hits the ground with the speed of 20 m/s . the tine furing which the ball is in f
    7·1 answer
  • Which characteristics describe a point charge
    7·1 answer
  • How do you think the weight and the lift should not be one of the same magnitude​
    5·1 answer
  • 1. A composite when tested bounces half as high as the original material. How can
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!