Answer:
Both student are correct.
Explanation:
Given :
Student 1: Nuclear fusion powers the Sun, so activity like sunspots and flares must be caused by a change in the fusion rate or the type of fusion.
Student 2: Fusion is constant, keeping the Sun a nice temperature; changes on the surface are caused by the Sun's magnetic field
There are two types of nuclear reaction,
Fusion:
Two lighter atom combine together are produce new atom.
In case of fusion large amount of energy produces and fusion powers the sun. In case of sun two hydrogen atom combine together and helium produces so statement 1 is true.
Sun posses large magnetic field due to magnetic field sun spot created like magnet there are two poles N and S, magnetic field lines goes from N to S.
Sun spot are produces because of change in magnetic field and change in temperature. So statement 2 is also true.
D.Neither High- nor low-pressure systems lead to rain
Answer:
It is likely that the citizens have very limited water for agriculture and personal uses and it is stored in their homes, while in the U.S we have water ready at the moment we need it and can access it with faucets.
Explanation:
Answer:
Explanation:
spring constant of spring = mg / x
= .4 x 9.8 / ( .95 - .65 )
=13.07 N / m
energy stored in spring = 1/2 k x²
= .5 x 13.07 x ( 1.2 - .65 )²
= 1.976 J
Let it goes x m beyond its equilibrium position
Total energy at initial point
= 1.976 + 1/2 m v²
= 1.976 + .5 x .4 x 1.6²
= 2.488 J
energy at final point
= mgh + 1/2 k x²
.4 x 9.8 x ( .55 + x ) + .5 x 13.07 x² = 2.488
6.535 x² + 2.156 + 3.92 x = 2.488
6.535 x² + 3.92 x - .332 = 0
x = .075 m
7.5 cm
Answer:
F=-100N; a=1.3m/s^2
Explanation:
Force is being made by student, so wall counteracts that force by not moving so it is equally opposite.