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juin [17]
3 years ago
8

Martha (50 kg) is attracted to Stewart (70 Kg) who sits 4 m away. What is the gravitational attraction between them? G=6.67 x 10

^-11 (-11 is an exponent)
Physics
1 answer:
kodGreya [7K]3 years ago
8 0

Answer:

1.46× 10^-8 N

Explanation:

F=Gm₁m₂/r²

F=(6.67×10⁻¹¹ × 50× 70)/(4)²

F=1.46× 10^-8 N

Hope, this helps you.

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nydimaria [60]
<span>An organism that is being harmed by the parasite is a _________? 
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Answer- It is called a host

Hope this helps! :D</span>
3 0
3 years ago
What causes differences in air pressure around the Earth?
Olegator [25]
Wind is primarily driven by differences in air pressure. These variations in air pressure are due to temperature differences caused by variations in solar energy received at the surface of the Earth.
7 0
4 years ago
If a scuba diver fills his lungs to full capacity of 5.5 L when 10 m below the surface, to what volume would his lungs expand if
umka21 [38]

Answer:

The volume at the surface is 10.97 L.

Explanation:

Given that,

Volume = 5.5 L

Height = 10 m

Density of sea water= 1025 kg/m³

We need to calculate the pressure at that point

Using formula of pressure

P'=P+\rho gh

Put the value into the formula

P'=1.01\times10^{5}+1025\times9.8\times10

P'=201450\ Pa

We need to calculate the volume at the surface

Using equation of ideal gas

PV= RT

So, for both condition

PV=P'V'

Put the value into the formula

V=\dfrac{201450\times5.5}{1.01\times10^{5}}

V=10.97\ L

Hence, The volume at the surface is 10.97 L.

3 0
3 years ago
Read 2 more answers
If a 2000 N force is used to raise a piano at a rate of 10 m/s2, what is the mass of the piano?
saveliy_v [14]

Answer:

To solve this problem we will apply the principle of conservation of energy for which we have that the potential energy on a body, is equivalent to the work done on it at the given point. Therefore we will have the following equality

At the same time we know that work is equivalent to the Force applied over a given distance, so,

The potential energy is equivalent to the product between mass, gravity and height. Recall that the product of mass and gravity is equivalent to weight (The same given in the statement)

Equating,

Then,

Replacing,

Therefore the force needed to lift the piano is 600N

Explanation:

HOPE THIS HELPS!!!

3 0
3 years ago
For a moon orbiting its planet, rp is the shortest distance between the moon and its planet and ra is the longest distance betwe
boyakko [2]

e = 0.57 is the moon's orbital eccentricity

You may determine the ellipse's eccentric formula by using

e = r a - r p / r a + r p

The distance r a between the moon and its planet is the greatest.

r p=0.27 The shortest distance between the moon and its planet is r a.

Then, e = r a - r p / r a + r p

e is defined as (r a - 0.27 r a) / (r a + 0.27 r a).

e = 0.73r a / 1.27 r a

e = 0.57

The eccentricity of a conic section expresses how much it resembles a circle. Every conic section has this distinctive parameter, and conic sections are only said to be identical if and only if their eccentricities are the same. A conic section's eccentricity is a non-negative real integer that specifically describes its shape. Formally speaking, two conic sections are comparable if and only if their eccentricities match. The eccentricity can be thought of as a measurement of how far a conic section strays from being round.

To know more about eccentricity refer to brainly.com/question/12791730

#SPJ4

5 0
1 year ago
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