Answer:
Explanation
There are two factors that can cause the fusion rate in the sun's core to increase.
1) Rise in the temperature of core:
If the temperature of the sun's core increases then it will increases the nuclear fusion reaction. The nuclear fusion reactions has such a strong dependency on temperature that even a smallest rise in temperature will results in the higher rate of reaction. That is why these reactions happen in the hottest core of the stars.
2) Reduction in the radius of the core:
Density plays a huge role in the nuclear fusion reactions. If the radius of the sun's core decrease then there will be an increase in the density of the core. Thus the gravitational pressure will also increases. In order to resist this increase in pressure the fusion reactions will speed up and their rate becomes higher.
Answer:Spot B
Explanation:
Mary will Reject spot B which can be explained by the process of Selective thinking.
Selective reasoning is the practice in which one chooses favorable memory and concentration information while ignoring unfavorable proof of belief.
This kind of reasoning is the foundation of most beliefs in so-called mind readers and media's psychic powers. It is also the basis of many, though not all, mysticism and pseudo science beliefs.
though hotels are modern but the presence of very cold water and strong winds might become the factors to reject spot B
Explanation:
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Answer:
245 N
Explanation:
Force is given by mass × acceleration. The mass is given and we need to determine the acceleration.
The bobsled starts from rest; its initial velocity is 0.0 m/s. After a distance of 6.5 m, its speed is 7.0 m/s
We use the equation of motion:
<em>v</em> is the final velocity, is the initial velocity, <em>a</em> is the acceleration and <em>s</em> is the distance.
The net force is
Answer:
V = 308.06 miles/hour
θ = 13.13° west of north.
Explanation:
Airplane speed = V₁ = 300 miles/hour
Wind speed = V₂ = 70 miles/hour
Resultant speed of the plane = V = ?
As airplane is trying to fly straight North and wind is blowing toward the west. So the angle between airplane velocity and wind velocity is 90°.
By Pythagoras Theorem
V =
V =
V = 308.06 miles/hour
θ = tan⁻¹(70/300)
θ = 13.13° west of north.