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
nevsk [136]
3 years ago
11

A comet with a mass of 7.85 × 1011 kg is moving with a velocity of 25,000 m/s. calculate its kinetic energy.

Physics
1 answer:
Nadusha1986 [10]3 years ago
6 0
The kinetic energy of an object is given by:
K= \frac{1}{2}mv^2
where
K is the kinetic energy
m is the mass of the object
v is its velocity.

The comet in our problem has a mass of m=7.85 \cdot 10^{11} kg and a velocity of v=25000 m/s, so its kinetic energy is:
K= \frac{1}{2}(7.85 \cdot 10^{11} kg)(25000 m/s)^2=2.45 \cdot 10^{20}J
You might be interested in
A baby carriage is rolling down a hill. Take into consideration, the carriage has 90J of kinetic energy and the mass of the carr
Sphinxa [80]

Answer:

YES. 6√10

Explanation:

apply E=1/2mv^2 and find the velocity of carriage which is 6√10 ms-1

as our velocity is higher than that of cart. we can catch the carriage

7 0
2 years ago
Which statement correctly explains scientific theories?
Elan Coil [88]
<span>Scientific theories are tested and proven over time; they are then considered scientific laws.

Sometimes however, they are proven wrong, and so they do not become laws

hope this helps</span>
4 0
3 years ago
Read 2 more answers
The average distance from the sun to Pluto is approximately 6.10 × 109 km. How long does it take light from 
Scorpion4ik [409]
V= \frac{S}{t}
t= \frac{S}{V}<u />
t= \frac{S}{c}
t= \frac{6.1*10^{12}}{299792458}
t=20347.4098071s

It takes 20347.4098071s for light from the sun to reach Pluto.
The 6.1*10^9 is replaced by 6.1*10^12 on line 4 because we convert the distance from km to m. 
c = speed of light. If a different value was given in the previous question then use that instead of the value I used to do the final calculation.
3 0
3 years ago
Two sacks contain the same number of identical apples and are separated by a distance r. The two sacks exert a gravitational for
stepan [7]

Answer:

Explanation:

im sleppy

3 0
3 years ago
Compare and contrast the life cycle of a low mass star and a high mass star
True [87]
Low mass: Live for billions (trillions?) of years. The first low mass red dwarfs in this universe still haven't died off yet, so we aren't completely sure what happens when they "die." 

<span>Very High Mass: Run through their fuel exceedingly fast. *Die* relatively quickly (in the range of tens to hundreds of millions of years instead of billions and beyond) and go out with style, Supernova that will leave behind a neutron star (the *kind of very high mass stars" end this way) or a black hole (the *very very high mass stars* end this way.)</span>
6 0
3 years ago
Other questions:
  • Why is the top of a wave called a crest
    6·1 answer
  • Determine the acceleration that results when a 12 N net force is applied to a 3 kg object.
    5·1 answer
  • What is 541.2 mg in grams
    11·2 answers
  • An airplane flies 2500 miles east in 245 seconds what is the velocity of the plane?
    7·1 answer
  • At an instant when a soccer ball is in contact with the foot of the player kicking it, the horizontal or x component of the ball
    14·1 answer
  • 13. How many electrons does a complete third electron shell hold?
    8·1 answer
  • a balloon inflated in a room at 297k has a volume of 4.00 l. the balloon is then heated to a temperature of 331 k. what is the n
    8·1 answer
  • A car increases its speed from 11.1 meters per second to 24.2 meters per second in 5.0 seconds. What is the average acceleration
    7·1 answer
  • Which statement uses power correctly? (1 point)
    12·1 answer
  • Can you guys help me please <br>brainliest if correct answer​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!