Physics, 30.01.2021 14:00, tmrodriguez1

1. Two spherical objects have equal masses and experience a gravitational force of 85 N towards one
another. Their centers are 36mm apart

Answers: 2

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Answers

All object in the universe attract each other on the basis of the masses and distance between them. The mass of the given particle is $\bold {4.06 x 10^4kg}$ .

Universal law of gravitation:

It states that the all object in the universe attract each other on the basis of the masses and distance between them.

$\bold{F=G{\frac{m_1m_2}{r^2}}}$

Where,

F= force = 85 N

G= gravitational constant = $\bold{6.67 x 10\\^-^1^1}$

m1= mass of object 1 = ?

m2 = mass of object 2 = ?

r= distance between centers of the masses = 36 mm

As stated in the question,

m1 = m2 = m

Now, put the values in the formula,

$\bold { 85 = \dfrac {6.67\times 10^-^1^1 \times m^2}{0.036^2}}\\\\\bold { m = 4.06 x 10^4kg}$

Therefore, the mass of the given particle is $\bold {4.06 x 10^4kg}$ .

To know more about universal law of gravitation, refer to the link:

link

answered: perezriii4133

4.06 x 10⁴kg

Explanation:

Given parameters:

Gravitational force = 85N

Distance or separation = 36mm = 0.036m

Unknown:

Their masses = ?

Solution:

Both of the spherical objects have the same mass as indicated by the object.

From the newton's law of universal gravitation:

F = $\frac{G m1 m2}{r^{2} }$

F is the gravitational force

G is the universal gravitation constant = 6.67 x 10⁻¹¹

m1 is the mass of object 1

m2 is the mass of object 2

r is the distance between them

Since m1 = m2 = m

So;

85 = $\frac{6.67 x 10^{-11} x m^{2} }{0.036^{2} }$

Therefore;

m = 4.06 x 10⁴kg

answered: Guest

Kinetic energy = 1/2mv^2. since the mass is constant we can form a ratio of it's kinetic energy at 60 divided by that at 30 to see ke(60)/ke(30) = +(60^2)/30^2). this may be said to 300% increase.

answered: Guest

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.

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1. Two spherical objects have equal masses and experience a gravitational force of 85 N towards one...