Free answers to gravitational force questions

Recent questions in Gravitational force

Tristan Meyers 2022-05-19 Answered

a. What is the gravitational force of the sun on the earth?
b. What is the gravitational force of the moon on the earth?
c. The moon’s force is what percent of the sun’s force?

Jayden Mckay 2022-05-19 Answered

A body weighs 72 Non the surface of the earth. Calculate the gravitational force on it due to the earth at a height equal to half of radius of the earth.

Regina Ewing 2022-05-19 Answered

I have this expression for the gravitational force between 2 masses when the gr term is added:
$F = - \frac{G M m}{r^{2}} + \frac{4 G^{2} m M (M + m)}{r^{4} c^{2}}$
which I got from the internet since I haven't bee able to find a similar expression in any book. But i'm not sure if it's right or needs fixing.
Is the second term in the force correct?

uto2rimxrs50 2022-05-19 Answered

In an experiment, an object is released from rest near and above Earth's surface. A student must determine the relationship between the direction of the gravitational force exerted on the object and the change in momentum caused by that force. What data could the student collect to determine the magnitude and direction of the gravitational force and the change in momentum of the object? Justify your choices. Select two answers.

vulkanere64t6 2022-05-18 Answered

A 20kg block and a 2kg block are falling with no air resistance. What is the gravitational force on the 20kg block?

dresu9dnjn 2022-05-18 Answered

Given that the electrical force is so much stronger than gravitational force at atomic levels, why is it that it's the gravitational force between you and the earth that keeps you on the ground rather than the electrical force between you and the earth?

lurtzslikgtgjd 2022-05-17 Answered

A setellite in Earth orbit has a mass of 91 kg and is at an altitude of $2.04 \times 10^{6} m$ . (Assume that U = 0 as $r \to \infty$ )(a) What is the potential energy of the satellite-Earth system?
J
(b) What is the magnitude of the gravitational force exerted by the Earth on the satellite?
N
(c) What force, if any, does the satellite exert on the Earth? (Enter the magnitude of the force, if there is no for
N

vulkanere64t6 2022-05-14 Answered

How is the gravitational force between two point masses affected when they are dipped in water keeping the seperation between them the same?

Jayla Faulkner 2022-05-14 Answered

An electron and a positron are separated by distance r. Findthe ratio of the gravitational force to the electric force betweenthem. From the result, what can you conclude concerning theforces acting between particles detected in a bubble chamber?(Should gravitational interactions be considered?)

Dominick Blanchard 2022-05-14 Answered

(a) Calculate the gravitational force exerted on a 5.00 kg baby by a 90 kg father 0.200 m away at birth (assisting so he is close).
(b) Calculate the force on the baby due to Jupiter if it is at its closest to the earth, some $6.29 \times 10^{11} m$ away, showing it to be comparable to that of the father. The mass of Jupiter is about $1.90 \times 10^{27} k g$ . Other objects in the room and the hospital building also exert similar gravitational forces.

Jayden Mckay 2022-05-13 Answered

The only known force a planet exerts on Earth is gravitational. (a) Calculate the magnitude of the gravitational force exerted on a 4.20 kg baby by a 100 kg father 0.200 m away at birth (he is assisting, so he is close to the child). (b) Calculate the magnitude of the force on the baby due to Jupiter if it is at its closest distance to Earth, some away. How does the force of Jupiter on the baby compare to the force of the father on the baby? Other objects in the room and the hospital building also exert similar gravitational forces. (Of course, there could be an unknown force acting, but scientists first need to be convinced that there is even an effect, much less that an unknown force causes it.)

Reese Estes 2022-05-13 Answered

Two balls have their centers 2.0 m apart. One ball has a mass of 8.0 kg. The other has a mass of 6.0 kg. What is the gravitational force between them?

Jaeden Weaver 2022-05-13 Answered

Why do we use gravitational force in earth by relating just the mass of an object with the acceleration produced by the gravitational field:
$F_{g} = m \cdot \vec{g}$
And when we're dealing with planets, we use a relation defined by the masses of two planets, distance squared and gravitational constant:
$F_{g} = G \cdot \frac{M_{1} \cdot M_{2}}{d^{2}}$
I really don't get why we use just the first relation here on earth, because we're dealing with a interction between two objects... It's because our mass is irrelevant??

fetsBedscurce4why1 2022-05-10 Answered

Why do we integrate along the whole length while finding the gravitational force between a object of mass (m) and a rod of length L and mass M? Can't we simply use $F = \frac{G m M}{r^{2}} ?$ ?

sg101cp6vv 2022-05-10 Answered

Two objects are attracted to each other with 36 N of gravitational force. What would the force between them be if the distance between them were doubled?

agrejas0hxpx 2022-05-10 Answered

Two objects, with masses $m_{1}$ and $m_{2}$ , attract each other with force $F$ . If the mass of $m_{1}$ increased by a factor of two then the new gravitational force would be:
F/4
2 F
4 F
F/2

enclinesbnnbk 2022-05-09 Answered

A book is lifted upward a vertical distance of 0.800 m. Duringthis displacement, does the gravitational force acting on the book do positivework or negative work? Does the gravitational potential energy of thebook increase or decrease?

Blaine Stein 2022-05-09 Answered

Compare the gravitational attraction between objects on earth and interaction of celestial bodies in space. Which gravitational force is almost negligible? Why?

rockandriot0odjn 2022-05-09 Answered

1. Why is gravitational force always an attractive force?
2. And is the Newtonian formula of gravitational force applicable for very small particles like electrons and protons etc.? From Formula of Gravitational Force, I'm referring to:
$F_{G} = \frac{G M m}{R^{2}},$
where M and m are the masses of objects.
A logical explanation will be much appreciated.

Jaime Coleman 2022-05-09 Answered

Earth is the third planet in our solar system. If Earth became the fifth planet in our solar system, how would that affect the gravitationallforce? A. The gravitational force would increase. B. The gravitational force would decrease. C. The gravitational force would remain the same. D. The gravitational force would not change .

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