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s344n2d4d5 [400]
4 years ago
6

Are there really dead stars in the sky?​

Physics
2 answers:
sp2606 [1]4 years ago
5 0

Answer:

Yes

Explanation:

The star would have died over thousands of years ago but the light takes a long time for it to reach us on Earth.

balu736 [363]4 years ago
4 0

Answer:

Eventually the cycle of star birth and death will come to an end. Gravity will have won, a victory delayed by the ability of stars to call on the resources of nuclear fusion. But ultimately, gravity will reduce all stars to a super-dense state as black holes, neutron stars or cold white dwarfs.

Explanation:

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Andy has two strong magnetic marbles of equal size. What will happen when he puts the two marbles about 2 centimeters apart?
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I believe it would be C
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4 years ago
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What is an uncharged body? In physics (simple words)
andriy [413]

An uncharged body is a body that has equal magnitude of positive as well as negative charge on it. So as soon as some charged body is placed near it, the charged body induces negative charges on the uncharged body.

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3 years ago
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Determine the momentum of a 6 kg object moving at 5 m.s-1 to the right
SCORPION-xisa [38]

Answer:

P = 6*5 = 30 [kg*m/s]

Explanation:

in order to solve this problem, we must remember that linear momentum is defined as the product of mass by Velocity. This way you can calculate the momentum using the following equation.

P = m*v

where:

P = lineal momentum [kg*m/s]

m = mass = 6 [kg]

v = velocity = 5 [m/s]

P = m*v

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5 0
3 years ago
The electric field inside a cell membrane is 8.0 MN/C. Part A What's the force on a singly charged ion in this field?
dlinn [17]

Answer:

Force on the singly charged ion will be 12.6\times 10^{-13}N

Explanation:

We have given electric field E = 8 MN/C

So electric field in N/C will be E=8MN/C=8\times 10^6N/C

It is given that ion so charge on ion will be equal to e=1.6\times 10^{-19}C

We have to find the electric force on the ion

Electric force is equal to F=qE, here q is charge and E is electric field

So force on the charge will be equal to F=8\times 10^6\times 1.6\times 10^{-19}=12.6\times 10^{-13}N

So force on the singly charged ion will be 12.6\times 10^{-13}N

7 0
4 years ago
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