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N76 [4]
3 years ago
13

What force would have to win out in order for the Big Crunch to occur?

Physics
1 answer:
lutik1710 [3]3 years ago
3 0

Answer:

You see, initially, scientists believed that there were only two factors that greatly influenced this expansion: the gravitational force of attraction between all the galaxies (which is proportional to the density) and their outward momentum due to the Big Bang.

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Hydrogen is found as a gas on Earth but exists in all four states in the solar
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A cell is classified as eukaryotic if the cell
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3 years ago
A metal ball of mass 2 kg is supported by a massless inextensible string, 12 cm long. A horizontal force displaces the ball by 3
Rudiy27

As it is given that 2 kg mass is suspended by 12 cm long thread and then a horizontal force is applied on it so that it remains in equilibrium at 30 degree angle

So here we can use force balance in X and Y directions

now for X direction or horizontal direction we can use

F = Tsin30

for vertical direction similarly we can say

mg = T cos30

so here we first divide the two equations

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\frac{F}{mg} = tan 30

F = mg tan30

now plug in all values in the above equation

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Part b)

now in order to find the tension in the thread we can use any above equation

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4 0
3 years ago
Can you help me??? This is too hard.
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