Question

* A. If you have two objects with different masses hit
each other the force between them will be the same or different
when they hit.* Explain

B. *If you have two vectors and you want to get the sum
of these vectors. How many ways you could do that, explain your
answer in more details, don't just give a numbe*

Answer #1

(A) The force between them will be equal in magnitude but opposite in direction as per Newton's third law.

(B) We can add vector geometrically and algebraically In the geometric process, the tail of any second vector will be kept on the head of the first vector. Then joining the head of second with the tail of first vector will give the resultant vector. The first and second vector can be chosen arbitrarily as the order does not matter.

In the algebraic process, vectors must be represented the Cartesian form. Now the similar component will be added separately, For example, consider two vectors in cartesian form.

then their sum will be

The seperation distance between two masses is 0.400 m The
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gravitational force exerted by these objects on a 52.0 kg object
placed midway between them.

Two positively charged objects repel each other with a force of
magnitude 180N when the distance between them is 15m. When the
distance between the same two objects is made 5m, the magnitude of
the force between them is
a 20N.
b 60N.
c 180N.
d 540N.
e 1620N.

#1) a) Find the force of gravity between two uniform spheres as
they touch each other. Each sphere has a mass of
m = 48 kg and a radius of r =
0.7 m. (Enter the magnitude in newtons.)
b) What is the force of gravity between them when they stand
(surface to surface) 6 m from each other? (Enter the
magnitude in newtons.)
#2) Two objects of masses m1 = 740
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Two
small charged objects attract each other with a force F when
separated by a distance d/2. If the charge on each object is
reduced to one-fourth of its original value and the distance
between them is reduced to d/4 the force in the second case is
related the force in the first case by :
" I want a solution with explanation "

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?

Two objects of different masses have momentum of equal, non-zero
magnitude. Which object has more kinetic energy?

You have 3 mammals and 3 reptiles in the zoo. You must feed each
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grapes, meat, oranges, lettuce, carrot, salmon, corn, apples.
(a) How many different ways can you feed each animal?
(b) How many different ways can you feed each animal if all the
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(c) How many different ways can you feed each animal if at least
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A father and his seven-year-old daughter (who have different
masses) are facing each other on ice skates. With their hands, they
push off against one another. Which one or more of the following
statements is (are) true?
A. Each experiences an acceleration that has a different
magnitude.
B.
Each experiences an acceleration of the same magnitude.
C.
Each experiences a pushing force that has a different
magnitude.
D.
Each experiences a pushing force that has the same
magnitude.

M3: Gravity
In the Newtonian model for gravity, gravity is a force between two
masses, dependent on the mass of the objects and the square of the
distance between the objects’ center of mass. The closer the masses
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the weaker it is. Gravity is most commonly understood as the force
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You have two synchronously vibrating objects in an infinitely
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B....

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