What is albert einsteins contribution to the understanding of nucear energy?
2 answers:
Answer:
He was able to prove that matter and energy are inter-convertible, and mass may be used to measure the total energy present in an object.
Explanation:
He observed a mass defect in nuclear reaction products and the reactants. Thus, mass may be used to measure the total energy present in an object by the use of the equation;
E = m ×
Where: E is the energy, m is the mass and c is the constant speed of light.
He developed the use of nuclear reactions to generate heat energy, which has a great applications in atomic bombs.
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Answer:
Explanation:
Given:
height above which the rock is thrown up,
initial velocity of projection,
let the gravity on the other planet be g'
The time taken by the rock to reach the top height on the exoplanet:
where:
final velocity at the top height = 0
(-ve sign to indicate that acceleration acts opposite to the velocity)
The time taken by the rock to reach the top height on the earth:
Height reached by the rock above the point of throwing on the exoplanet:
where:
final velocity at the top height = 0
Height reached by the rock above the point of throwing on the earth:
The time taken by the rock to fall from the highest point to the ground on the exoplanet:
(during falling it falls below the cliff)
here:
initial velocity= 0
Similarly on earth:
Now the required time difference: