Answer:
The mass of the bullet is much greater than the mass of the rifle.
Explanation:
-Emily has a mass greater than the mass of the rifle.
-By Newton's 3rd Law, the gun only moves back in proportion to it's mass.
-This greater mass acts as a shock absorber to the resulting recoil force.
-Due to Emily's greater mass, she'll only experience a force equal to the mass of the bullet which is not enough to make her have the same acceleration as the bullet.
The sun converts fusion energy into radiant (electromagnetic) energy.
<u>Explanation:
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The energy which we get from the sun is called Solar Energy. The Solar Energy is nothing but, a form of energy, which is left out from an exothermic reaction. The radiant energy is the solar energy. The sun gets its energy through nuclear fusion.
High temperature causes the sun’s nuclei to separate from electrons. And with these electrons, the hydrogen ions combine to form Helium, which is the source of energy for the sun. As the nuclear fusion continues, the energy is derived and we get solar energy.
Answer:
C. 3m/s
Explanation:
Since we ignore air resistant, horizontally speaking, theres no force acting on the ball. According to Newton's 1st law of motion, when there's no force, the object will stays in the same velocity.
In this case after, the ball velocity would still be 3m/s