Answer: F = 106.72 N
Explanation: <u>Newton's</u> <u>Law</u> <u>of</u> <u>Universal</u> <u>Gravitation</u> states that two masses attract each other by a force pointing in a straight line to the center-of-mass of both masses.
It is directly proportional to the masses and inversely proportional to the square of their distance, represented as:
where
G is gravitational constant whose value is 6.67x10⁻¹¹ N(m/kg)²
m are masses in kg
r is distance in m
The force between the moon and a person with mass of 66kg is:
F = 106.72 N
The force between a person with mass of 66kg and the moon is 106.72 N.
<u>Disaster</u>:- a calamitous event, especially one occurring suddenly and causing great loss of life, damage, or hardship, as a flood / airplane crash.
:))
Answer:
It's used to indicate pressure
Answer:
672000 J.
Explanation:
From the question,
q = cm(t₂-t₁)............................ Equation 1
Where q = heat energy supplied to the water, c = specific heat capacity of water, m = mass of water, t₂ = final temperature, t₁ = Initial temperature.
Given: m = 8.0 kg, c = 4200 J/kg°C, t₂ = 40°C, t₁ = 20°C
Substitute these values into equation 1
q = 8×4200×(40-20)
q = 8×4200×20
q = 672000 J.
Hence the energy suplied to the water is 672000 J.