Nuclear fusion is the process by which multiple nuclei join together to form a heavier nucleus.
Nuclear fusion of light elements releases the energy that causes stars to shine and hydrogen bombs to explode.
Nuclear fusion of heavy elements (absorbing energy) occurs in the extremely high-energy conditions of supernova explosions.
Nuclear fusion in stars and supernovae is the primary process by which new natural elements are created.
It is this reaction that is harnessed in fusion power.
It takes considerable energy to force nuclei to fuse, even those of the lightest element, hydrogen.
Answer:
atmospheres are equivalent to millimeters of mercury.
Explanation:
According to current SI unit conversions, 1 atmosphere is equal to 760 millimeters of mercury. The current pressure is determined by simple rule of three:
atmospheres are equivalent to millimeters of mercury.
Answer:
N = 3.46
Explanation:
The escape velocity on a planet is given by the expression
V_e = √2GM / R
G , M and R are gravitational constant , mass and radius of the planet respectively.
Potential energy at the surface
- GMm /R
Total energy at the surface
= - GMm /R + 1/2 m x (3.6V_e )²
- GMm /R + 1/2 m x 12.96 x2GM / R
= 11.96 GMm /R
Total energy at infinity
1\ 2 m v² + 0 ( potential energy is zero at infinity )
1\2 mv²
Applying conservation of energy
1/2 m v² = 11.96 GMm /R
v = √11.96 √2GMm /R
v = √11.96 x escape velocity at planet.
= 3.46 times
N = 3.46
Nope, this is impossible because in order for a car to pass another, they the 55 mph car would have to be behind the 65 mph car (meaning that starting ahead of the 65 mph doesn't count as pass). Assuming that they both drive for one hour, it is impossible because the first will cover a distance of 65 mi and the second would cover a distance of 55 mi. One is obviously ahead of the other and is therefore impossible for the slow one to pass the first one unless the slow car keeps driving after an hour. In that case, it would take approximately 11 minutes for it to pass the other car. This was found by finding the distance needed to pass the first car : 65 - 55 = 10 mi and converted using 1 hr/ 55 mi = .18181818 hr x 60 min/ 1 hr = 11 seconds
I hope this helps :)
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