High digital and high are the answers.
hope this helps
I can't really answer this question without giving me any limits to the possibilities of the answers. However, I found a similar problem with a given set of choices. I think the answer is plasma. The medium that has the highest conductivity must be electric or ionized in nature. Since plasma is a very hot ionized gas, then it would be the most conductive out of all the choices.
Answer:
the point between Earth and the Moon where the gravitational pulls of Earth and Moon are equal is <em>E)3.45 × 10⁸ m</em>
Explanation:
The force that the Earth exerts on a mass m is
F_e = (G M_e m) / R_e²
where
- G is the universal gravitational constant
- M_e is the mass of Earth
- R_e is the radius of Earth
The force that the Moon exerts on a mass m is
F_m = (G M_m m) / R_m²
where
- G is the universal gravitational constant
- M_m is the mass of the Moon
- R_m is the radius of the Moon
Therefore, the point where the gravitational pulls of Earth and Moon are equal is:
F_e = F_m
R_e + R_m = R = 3.84×10⁸ m
Thus,
(G M_e m) / R_e² = (G M_m m) / R_m²
M_e / R_e² = M_m / (R - R_e²)
(R - R_e²) / R_e² = M_m / M_e
(R - R_e) / R_e = (M_m / M_e)^1/2
R_e(R/R_e -1) / R_e = (M_m / M_e)^1/2
R/ R_e = (M_m / M_e)^1/2 + 1
R_e = R / [(M_m / M_e)^1/2 + 1]
R_e = (3.84×10⁸ m) / [(7.35 x 10²² kg / 5.97 x 10²⁴ kg )^1/2 + 1]
R_e = 3.45 × 10⁸ m
Therefore, the point between Earth and the Moon where the gravitational pulls of Earth and Moon are equal is <em>3.45 × 10⁸ m.</em>
46.58m/s²
26.43kg
Explanation:
Given parameters:
Force = 67N force = 185N
Mass = 1.43kg acceleration = 7m/s²
Unknown:
Acceleration = ?
mass of the object = ?
Solution:
According to newton's second law of motion "the net force on a body is a product of its mass and acceleration".
Force = mass x acceleration;
For the first problem;
the unknown is the acceleration;
Acceleration =
=
= 46.58m/s²
Using the same law, to find the mass of the second object, we make it the subject of the formula;
mass = 
mass =
= 26.43kg
learn more:
Newton's laws brainly.com/question/11411375
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Sinc the elevator is moving at constant velocity, it experience no net force and thus no net acceleration is experienced by the elevator. a=0ms^-2