Hello!
The kind of gas cloud that is most likely to give birth to stars is a cold, dense gas cloud.
Stars are formed in giant molecular clouds, called "star nurseries". These are regions with molecular Hydrogen, Helium, and little amounts of other elements. These are cold and dense regions, and the gas cloud collapses, forming a protostar. The protostar gradually heats, powering nuclear reactions in its center, which increases the temperature even more and giving birth to a star.
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Answer:
1.41 × 10⁻⁵Ωm
Explanation:
Resistance of wire is defined by the formula
R = ρL / A
RA / L = ρ
using ohm's law
V = IR
R at 20°C = V / I = 14 / 18.2 = 0.769 ohms
RA / L = ρ
diameter = 0.55 cm = 0.55 / 100 in m = 0.0055 m
A = πr² = 3.142 × (0.0055 m/ 2 )² = 0.0000238 m²
ρ = ( 0.769 ohms × 0.0000238 m²) / 1.30 m = 1.41 × 10⁻⁵Ωm
Answer:Work is a measurement of energy.
Power is a measurement of energy per time.
So, power measures how fast work is done.
If we raise 1kg up to a height of 1 meter it takes a certain amount of work. It doesn't matter if it takes us 1 second or 1 hour to raise it. It takes more power, energy per second, to raise it in 1 second than to raise it in one hour.
An engines power rating is in horsepower. A higher horsepower car engine will get a certain car up a hill more quickly than if it had a lower horsepower engine. Even though both engines did the same amount of work in getting the car up the hill