A new planet is discovered in an approximately circular orbit beyond Pluto. It moves at a rate of approximately 1° per year. It's semi-major axis is approximately:
answer:::::50 AU
Input energy is: 200 joule
Output energy is: 100 joule
100/200*100=%50 efficiency
Here, Initial momentum = mu = 5*1 = 5 Kg m/s
Final momentum = mv = 5*2 = 10 Kg m/s
So, Momentum has been increased from 5 Kg m/s to 10 Kg m/s. Hence, Your Final answer is option B
Hope this helps!
Answer:
Attracting means pulling toward you and repelling means pushing away
Explanation:
Answer : The kinetic energy depends directly on the mass of a particle.
Explanation :
We know that the kinetic energy of any particle is given by :

Where,
m is the mass of an object.
v is the velocity with which it is moving
Kinetic energy is due to the motion of the particle.
So, the kinetic energy of a particle is directly proportional to its mass.
Hence, the conclusion of the question is if the mass of a particle is increases then its kinetic energy also increase.