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matrenka [14]
3 years ago
15

The gravitational force between two objects is represented by the variable F. If the distance is decreased by 5 what is the new

gravitational force?​
Physics
1 answer:
Anvisha [2.4K]3 years ago
6 0

The universal law of gravitation states that:

Every object in the universe attracts every other object with a force which is proportional to the product of their masses and inversely proportional to the square of distance between them.

It means that if the gravitational force is F, then if the distance is decreased by 5 times, then the new gravitation force is:

F/5² = F/25

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Galileo performed an experiment to measure the speed of light by timing how long it took light to travel from a lamp he was hold
krok68 [10]

Answer:

The time it takes light to cover 1.5 km was too short to be measured by Galileo's instruments.

Explanation:

The speed of light is c=3*10^8m/s, which means the time it takes to cover a distance of 1.5 km (or 1,500m) will be

t= \dfrac{1500m}{3*10^8m/s}

t= 0.000005s

which is \dfrac{1}{200000} of a second! This time delay could in no way be measured by Galileo considering the fact that he was using his heartbeat to measure time!

6 0
2 years ago
A horizontal pipe has varying cross-section, with one section having a diameter of 5.5
bekas [8.4K]

Answer:

  1. 3 is diameater

Explanation:

2.0 is radius

5 0
2 years ago
How do intrusive igneous rocks differ from extrusive igneous rocks?
Nutka1998 [239]
Intrusive rocks are formed beneath the earth's surface and extrusive igneous rocks are formed beneath the earth's surface but cool quicken than intrusive igneous rocks<span />
6 0
3 years ago
Grace pushes her foot against the wall with a force of 35 N while she stands
Airida [17]

Answer:

The correct answer is B. 0.64 m/s²

Explanation:

According to the Newton's Second law of motion acceleration of an object by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force.

Mathematically,

                           F ∝ a

                           F = ma

Given data:

Force = F = 35 N

Mass = m = 55 kg

acceleration = a = ?

                           F = ma

                           a = F/m

                           a = 35/55

                          a = 0.64 m/s²

5 0
3 years ago
How much energy is contained in matter what the mass of 1 gram (0.001 kilogram)
kaheart [24]

Classically and Newtonianly, it's the sum of the chemical energy if any,
the electrical energy if any, the thermal energy if any, and the mechanical
energy consisting of potential and kinetic energy if any.

The mechanical energy, consisting of potential and kinetic energy if any, is

           0.001 x [ (acceleration of gravity x height) +  (1/2) (speed)² ] .

But I've got a sneaky hunch that you're not talking about any of these.
You want to know how much [ <em><u>mc</u>² </em>] there is in 1 gram of mass.  No prob.

           E = m c² = (0.001) x (3 x 10⁸)² = <em>9 x 10¹³ joules</em>

That's the energy that a 1,000-watt toaster uses
in  <em>2,852 years</em>  of continuous toasting.


6 0
3 years ago
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