Answer:
A). A Topic Sentence
Explanation: Confirmed By The Cheat Sheet
Buzz Aldrin
Neil Armstrong
John Glenn
Yes, John Glenn was the first to orbit the earth but the question I read was who WALKED ON THE MOON.....the answer to who was the FIRST to walk on the moon... is Neil Armstrong but Buzz Aldrin also walked and was there with Armstrong but wasn't the first. You have to be careful about the astronaut 'firsts'. Alan Shepherd was the first in space....John Glenn was the first to orbit the earth....Edward White was the first to 'walk in space' and Neil Armstrong was the first man to walk on the moon. Also remember that all of these were American Astronaut firsts. The Russians actually put up the first man in space. Yuri Gagarin was the first man. Buzz Aldrin landed and walked on the moon also.
Answer:
momentum = mass x velocity
Explanation:
So ultimately, find the mass of the object (be careful since this is not the same as weight. Weight is your gravitational pull to the earth. This means that your weight different amounts on different planets. But mass stays the same on all planets, it's what most people call their weight.) and then find the velocity (2 meters/second north, etc.)
Now you can apply this to your problem
Answer:
Electrostatic potential energy will convert into kinetic energy
Explanation:
When electron is released from rest at some distance from positive charge then due to electrostatic attraction force these two charges will attract each other.
Now in the form of energy we can say that
electrostatic potential energy =
now as the two charges comes closer to each other then the electrostatic potential energy will decrease and hence this energy will convert into kinetic energy of two charges
so we can say
The speed are they moving at will be 0.5 m/sec.Law of conservation of momentum is applied.
According to the law of conservation of momentum, the momentum of the body before the collision is always equal to the momentum of the body after the collision.
The given data in the problem is;
(m₁) is the mass of 1st gilder= 0.40 kg
(u₁) is the initial velocity = 2 m/s
(m₂) is the mass of 2nd gilder = 1.20 kg
(u₂) is the initial velocity of 2nd gilder = 0 m/s
(v) is the velocity after collision =.?
According to the law of conservation of momentum;
Momentum before collision =Momentum after collision
Hence, the speed are they moving at will be 0.5 m/sec
To learn more about the law of conservation of momentum refer;
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