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Mice21 [21]
3 years ago
8

How do mass and distance affect the gravitational force between two objects?

Physics
1 answer:
Dafna1 [17]3 years ago
8 0

Answer:

The force of gravity depends directly upon the masses of the two objects and inversely on the square of the distance between them.This means that the force of gravity increases with mass but decreases with increasing distance between objects

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Nuclear _________ reactions convert protons into helium; thus, becoming the source of all energy radiated by the sun. A) fission
Bogdan [553]

Nuclear fusion reactions convert protons into helium; thus, becoming the source of all energy radiated by the sun.

Answer: Option D

<u>Explanation:</u>

Nuclear fusion reaction is one among the two nuclear reactions in which the atoms nucleus interact with each other to produce the products. In nuclear fusion, two smaller atoms react together to form a new atom with bigger size.

So large amount of energy is required to start the nuclear fusion reaction. The fusion reactions mostly occurs in stars. The illumination in Stars even the Sun is due to nuclear fusion reaction occurring with the atoms present in them.

Mostly the energy radiated by Sun is due to the protons-protons chain reaction. In this chain reaction, the protons get converted into helium due to nuclear fusion reaction, thus becoming the source of all energy radiated by the Sun.

3 0
3 years ago
A watermelon is dropped from the top of a 80m tall building. We want to find the velocity of the watermelon after it falls for 1
White raven [17]

Answer:

v_f = v_i + at

v_f = 13.23 m/s

Explanation:

Height Of the watermelon when it is dropped is given as

h = 80 m

time of fall under gravity

t = 1.35 s

now if water melon start from rest then we have

v_i = 0

acceleration due to gravity for watermelon

a = 9.81 m/s^2

now we need to find the final speed of watermelon

v_f = v_i + at

so we will have

v_f = 0 + (9.81)(1.35)

v_f = 13.23 m/s

7 0
3 years ago
Alguien me puede ayudar con esa tabla ​
Scilla [17]
私は英語がわかりません sorry pls translate
7 0
2 years ago
Is the answer correct or wrong ​
Zielflug [23.3K]

Answer:

wrong answer because m=100

7 0
3 years ago
Read 2 more answers
Two movers use a rope system to lift a box to a third-story apartment. They do 1,200 J of work on the rope system, and the rope
xeze [42]
Efficiency is defined as the measure of the amount of work or energy is conserved in a certain process. At all times, in every process, work or energy is always lost or wasted due to certain interference. Not all work given is converted to useful work or energy. Thus , efficiency is calculated by dividing the energy or work output to the energy or work input then the value is multiplied by 100 to express efficiency as percentage.

Efficiency = work output / work input
Efficiency = (1020 J / 1200 J) = 85%
8 0
3 years ago
Read 2 more answers
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