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tigry1 [53]
3 years ago
6

The force that contributed to the formation of planets, determines the motion of bodies in the solar system, and pulls objects t

o the center of Earth is called
Physics
1 answer:
kykrilka [37]3 years ago
6 0

Answer:

The force of gravity

Explanation:

Gravity was studied, by early scientists such as Copernicus and others, Galileo was the first to ensure that planets moved according to a physical equation that depended on a force that caused celestial bodies to move and interact with each other. But years later Newton based on studies conducted deciphering what Galileo assumed, he was able to find the equation of the force of gravity in any body in the universe. This equation depends on the masses of the two interacting bodies, the distance between them and a constant, which I call universal gravitation constant.

F_{g}=G*\frac{m_{1}*m_{2}}{r^2}

Fg = gravity force [N]

G =  universal gravitation constant = 6.67*10^(-11) [N*m^2/kg^2]

m1 = mass of the 1st body [kg]

m2 = mass of the 2nd body [kg]

r = distance between the bodies [meters]

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Answer:

I would say the net force acting on the car is in the opposite direction of the car's motion  is correct

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What affect does distance have on the force of gravity
DaniilM [7]

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the power of the gravitational force depends on the factors

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3 years ago
What is a gravitational field and how its strength be measured
Yakvenalex [24]
A gravitational field is the field generated by a massive body, that extends into the entire space. Every object with mass m experiences a force F when immersed in a gravitational field. The intensity of the force is equal to
F= \frac{GM}{r^2}  m
where G=6.67 \cdot 10^{-11} m^3 Kg^{-1} s^{-2} is the gravitational  constant, M is the mass of the source of the field (e.g. the mass of a planet), and r is the distance between the object and the source of the field. The force is always attractive. 

A possible way to measure the intensity of a gravitational field is by measuring the acceleration a of the object immersed in this field. In fact, for Newton's second law we have:
F=ma
but since 
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we can write
a =  \frac{GM}{r^2}
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5 0
3 years ago
A weightlifter presses a 400 n weight 0.5 m over his head in 2 seconds, what is the power of the weight lifter
Scrat [10]
There are two ways to solve this problem. First we write the given.

Given: Force F = 400 N;  Height h = 0.5 m;  Time t = 2 s

Formula: P = W/t;  but Work W = Force x distance or W = f x d
 
Weight is also a Force, therefore:  W = mg, solve for Mass m = ?

m = w/g  m = 400 N/9.8 m/s²  m = 40.82 Kg

P = W/t = F x d/t  = mgh/t  P = (40.82 Kg)(9.8 m/s²)/2 s  

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3 0
3 years ago
In a prototype helicopter, a jet is expelled out of the helicopter’s side to make it turn in the opposite direction. If the jet
Nimfa-mama [501]

Answer:

The radius is (0.04m) meters

Explanation:

F = mv^2/r

m is the mass of the helicopter = m kg

v is the speed of the helicopter = 20 m/s

F is force supplied by the jet = 10,000 N

10,000 = m×20^2/r

r = 400m/10,000 = 0.04m

The radius is (0.04m) meters

6 0
3 years ago
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