Answer:
a) <u>gNP = 4.71 x 10^-14 m/s²</u>
b) <u>gNU = 1.06 x 10^-9 m/s²</u>
c) <u>gNU/gNP = 22505.3</u>
Explanation:
The formula for calculating the gravitational field at a planet is given by Newton's Gravitational law. Since the force exerted by 1st planet on 2nd will be equal to weight of the second planet
F = W = mg = GMm/R^2
g = GM/R^2
where,
m = mass of other planet
g = gravitational field at the surface of planet
G = Universal Gravitational Constant = 6.67 x 10^-11 N.m²/kg²
M = Mass of the planet
R = Distance between planets
a)
gNP = (6.67 x 10^-11 N.m²/kg²)(1.4 x 10^22 kg)/(4.45 x 10^12 m )²
<u>gNP = 4.71 x 10^-14 m/s²</u>
b)
gNU = (6.67 x 10^-11 N.m²/kg²)(8.62 x 10^25 kg)/(2.32 x 10^12 m )²
<u>gNU = 1.06 x 10^-9 m/s²</u>
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c)
gNU/gNP = (1.06 x 10^-9 m/s²)/(4.71 x 10^-14 m/s²)
<u>gNU/gNP = 22505.3</u>
Explanation:
Newton's first law of motion
state If a body is at rest it remain at reast and if it is in a motion it continue it's motion unless a net external force acting on it.
This law also called law of inertia
Newton's second law motion
states that acceleration to the force acting on the body and inversely proportional to the mass of the body
Newton's third law motion It is not to exert a force abody without the body exerting a forces in the opposite direction
These forces are called action and reaction force.
hope it's helpful ❤❤
THANK YOU
Answer:
81.3ohms
Explanation:
Resistance is known to provide opposition to the flow of electric current in an electric circuit.
Power dissipated by the computer is expressed as;
Power = current (I) × Voltage(V)
P = IV... (1)
Note that from ohms law, V = IR
I = V/R ... (2)
Substituting equation 2 into 1, we will have;
P = (V/R)×V
P = V²/R.. (3)
Given source voltage = 100V, Power dissipated = 123W
To get resistance R of the computer, we will substitute the given value into equation 3 to have
123 = 100²/R
R = 100²/123
R = 10,000/123
R = 81.3ohms
The resistance of the computer is 81.3ohms
The higher mass of a particle means it’ll be harder to move, slowing it down and the faster the particle is moving the higher the kinetic energy because there is more movement and pressure within the object with the energy