Question

Newton's Law - Please provide an explanation to the questions below.

PART A: Two objects have a gravitational attraction of 100 N. If the mass of ONE of the objects was doubled, what would the new force of gravity between the objects be? - Answer is 200 N.

PART B: Two objects have a gravitational attraction of 100 N. If the mass of both of the objects was doubled, what would the new force of gravity between the objects be? - Answer is 400 N.

PART C: Two objects have a gravitational attraction of 100 N. If the distance between the objects were cut in half, what would be the new force of gravity between the objects? - Answer is 400 N.

PART D: Two objects have a gravitational attraction of 100 N. If the mass of ONE of the objects was cut in half, what would the new force of gravity between the objects be? - Answer is 50 N.

PART E: Two objects have a gravitational attraction of 100 N and are located 1 meter apart. If the objects were moved so that they were 5 meters apart, what would the new force of gravity be? - Answer is 4 N.

PART F: Two objects have a gravitational attraction of 100 N and are located 10 meters apart. If the mass of ONE of the objects is doubled and the objects are moved to 20 meters apart, what is the new force of gravity between them? - Answer is 50 N.

Answer #1

Newton’s Gravitational Law predicts the force of attraction
between two massive objects that are some distance apart: Fgravity
= G m1m2/ r^2
(a) Given F is in units of Newtons, m is units of kilograms and
r is in units of meters, what are the units of the universal
gravitational constant, G, in meters, kilograms and seconds? Show
your working.[2]
(b) If one of the objects doubles in mass, how much does the
predicted force of attraction change between the...

A satellite of mass 3.00 x 104 kg is placed in orbit
around Jupiter. The mass of Jupiter is 2.90 x 1027 kg.
The distance between the satellite and the centre of Jupiter is
9.24 x 107 m.
Determine the force of gravitational attraction between the
satellite and Jupiter.
One of the moons of Jupiter is Io. The distance between the
centre of Jupiter and the centre of Io is 5.22 x 108 m.
If the force of gravitational attraction...

1)Suppose we have two planets with the same mass, but the radius of
the second one is twice the size of the first one.
How does the free-fall acceleration on the second planet
compare to the first planet?
2) Consider two celestial objects with masses m1 and m2 with a
separation distance between their centers r.
If the separation distance r were to halve (1/2), what would
happen to the magnitude of the force of attraction?
3) Consider two celestial...

1. Pick two objects in your room. Physics could describe the
gravitational attraction between them or the
electric force between them – why is neither one big enough to
have noticeable effect?
2.If you double the distance between two charges, what happens
to the electric force between them?

2. Suppose you have two small pith balls that
are 6.5 cm apart and have equal charges of -27 nC? What is the
magnitude of the repulsive force, in newtons, between the two pith
balls?
3. Suppose you have two point charges each of
72 NC. How many millimeters apart must the two charges be to have a
force of 1.05 N between them?
4. A free electron is suspended in an electric
field near the surface of the Earth....

Newton’s so-called “discovery” of gravity actually
referrers to his statement that the force of gravitational
attraction between two objects is proportional to the product of
the masses of the objects and inversely proportional to the
distance between them (in equation form this is
F=Gm1m2/r2; where G is the
Universal Gravitational constant).
1.Is this a law or model?
2.What would have to be present (or absent) to convert it
to the other (model to law or law to model)?

Quesiton A. Two objects are attracting each
other with a certain gravitational force. If the original force
between the two objects is 0.82 N , and the distance is tripled,
what is the new gravitational force between the objects?
Question B. A bowling ball weighing 71.2 N is
attached to the ceiling by a 4.00 m rope. The ball is pulled to one
side and released; it then swings back and forth like a pendulum.
As the rope swings through...

What is the magnitude of the gravitational force
between two objects of 100 kg and 250 kg each separated by a 1.5 m
distance? Use G = 6.67⋅10-11
N⋅m2/kg2.

Stationary planets “A” and “B”, each with mass 1024 kg, are
located 106 m away from each other in the horizontal direction (x).
Space capsule “C” with a mass of 1000 kg starts at rest 106 m from
both “A” and “B”, so the three objects form an equilateral
triangle. Assume that “A” and “B” have a fixed position and cannot
move, while “C” is able to move freely.
What is the net gravitational force vector on “C” at time...

For the following hypothetical changes in astronomical bodies
answer whether the change would make the specified property L -
Larger, S - Smaller, or N - Not changed. (If the first is L and the
rest S, enter LSSSS).
A) If the mass of the Sun were half as much and the Earth kept
the same distance, the period of the Earth's orbit would be .....
B) If the radius of the Earth were larger (but the mass were the...

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