What distinguishes a nebula and a star?

1 answer:

4 0

What distinguishes a nebula and a star is that a nebula is a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter. And a star is a type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.

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If the voltage in a circuit is 24 V and the current is 2 A, what is the total power in the circuit?

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Maybe you can divide the volts its twelve if you do that but itll show you how much to double it by

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An object is projected from the ground with an upward speed of ų m/s has a speed of 23m/s when it is at a height of 5m above the

vovikov84 [41]

Answer:

25.08m/s

Explanation:

mgh1 + 0.5mv1² = mgh2 + 0.5mv2²

h1 = 0m

v1 = u

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putting the values into the formula above;

m(10)(0) + 0.5m(u²) = m(10)(5) + 0.5m(23²)

0 + 0.5mu² = 50m + 264.5m

0.5mu² = 314.5m

dividing through by m

0.5u² = 314.5

u² = 629

u = 25.08m/s

Therefore, the initial speed "u" = 25m/s

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2 years ago

Please help me with this for science

finlep [7]

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Please can some one explaine fore me What is work done

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In Physics, 'work' has a very clear definition:

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If you push against a shopping cart with 30 newtons of force, and
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