Because when your running any experiment there will always be an experimental error so always be ready for it so that you can correct that error in your experiment
Answer:
Explanation:
the same amount of time in both halves of the circle
Answer:
Arranging the events of the earliest stellar formation in sequential order, we get -
3. The big bang occurs. --> 2. Pockets of elements in higher concentrations begin experiencing greater gravitational force. --> 1. Hydrogen atoms shed their electrons and fuse together to form larger helium atoms. --> 4. Hydrogen and helium disperse into the universe in uneven concentrations. --> 6. The gas clouds begin reducing in volume, which leads to increases in density, pressure, and temperature. --> 5. The temperature of gas clouds surpasses 14 million Kelvin.
Correct Order : Option 3, 2, 1, 4, 6, 5
Explanation:
The evolution in Stellar is the process of evolution through which a star which the stellar body changes its morphology over the course of time. All stars being the stellar body are created from collapsing clouds of gas and dust. These collapsing cloud of gas and dust are called nebulae or molecular clouds.
The collapse occurs with gravitational collapse of cool, dense molecular clouds. When the cloud collapses, fragments are formed of smaller regions. These fragments then contract to form stellar cores.
Answer:
x = D (M/M-m) 2.41
Explanation:
a) Let's apply Newton's second law to find the summation of force, where each force is given by the law of universal gravitation
F = g m₁m₂ / r²
Σ F = 0
F1- F2 = 0
F1 = F2
We set the reference system in the body of greatest mass (M) the planet
F1 = g m₁ M / x²
F2 = G m1 m / (D-x)²
G m₁ M / x² = G m₁ m / (D-x)²
M (D-x)² = m x²
MD² -2MD x + M x² = m x²
x² (M-m) -2MD x + MD² = 0
We solve the second degree equation
x = [2MD ±√ (4M²D² - 4 (M-m) MD²)] / 2 (M-m)
x = {2MD ± 2D √ (M² + (M-m) M)} / 2 (M-m)
x = D {M ± Ra (2M²-mM)} / (M-m)
x = D (M ± M √ (2-m/M)) / (M-m)
x = D (M / (M-m)) (1 ±√ (2-m/M)
Let's analyze this result, the value of M-m >> 1, so if we take the negative root, the value of x would be negative, it is out of the point between the two bodies, so the correct result must be taken with the positive root
x = D (M / (M-m)) (1 + √2)
x = D (M/M-m) 2.41
b) X = 2/3 D
x = D (M/M-m) 2.41
2/3 D = D (M/(M-m)) 2.41
2/3 (M-m) = M 2.41
2/3 M - 2/3 m = 2.41 M
1.743 M = 0.667 m
M/m = 0.667/1.743
M/m = 0.38