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Svetllana [295]
3 years ago
5

A spaceship orbiting earth flies to the moon. How is the gravitational force pulling on the spaceship related to the distance th

at the spaceship is from the earth?
A. As the distance from the earth increases, the gravitational pull on the spaceship would decrease.


B. The gravitational pull of the earth is constant and therefore the gravitational pull on would not change.


C. As the distance from the earth decreases, the gravitational pull on the spaceship would decrease.


D. There is no gravity on the moon and therefore only the earth will exert gravitational force on the spaceship.
Physics
2 answers:
ioda3 years ago
7 0
A is Correct, because as you increase the distance  between the spaceship and Earth the gravitational force would be less and according to Isaac Newton's Gravitational formula F = (G Mm)/r^2, the distance r is in inverse relationship to the Force.  
Butoxors [25]3 years ago
4 0
The correct answer is A
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Insulators are materials that do not allow heat or electricity to pass through.

Eg. Book, plastic, rubber, glass, paper

Explanation:

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2 years ago
A person slaps her leg with her hand, which results in her hand coming to rest in a time interval of 2.75 ms2.75 ms from an init
kumpel [21]

Answer:

2677.3 N

Explanation:

v₀ = initial speed of the hand = 4.75 m/s

v  = final speed of the hand = 0 m/s

m = Total mass of hand and forearm = 1.55 kg

t = time interval for hand to come to rest = 2.75 ms = 0.00275 s

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Using Impulse-change in momentum equation

F t = m (v - v₀)

F (0.00275) = (1.55) (0 - 4.75)

F = - 2677.3 N

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3 years ago
The magnetic field at the centre of a toroid is 2.2-mT. If the toroid carries a current of 9.6 A and has 6.000 turns, what is th
ziro4ka [17]

Answer:

Radius, r = 0.00523 meters

Explanation:

It is given that,

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Number of turns, N = 6

We need to find the radius of the toroid. The magnetic field at the center of the toroid is given by :                  

B=\dfrac{\mu_oNI}{2\pi r}

r=\dfrac{\mu_oNI}{2\pi B}  

r=\dfrac{4\pi \times 10^{-7}\times 6\times 9.6}{2.2\pi \times 2\times 10^{-3}}  

r = 0.00523 m

or

r=5.23\times 10^{-3}\ m

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7 0
2 years ago
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The sentence is accurate, therefore TRUE is the answer.
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3 years ago
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Sever21 [200]

Answer:

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2.   Increases,

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