Answer:
7.66×10⁻⁵ K⁻¹
Explanation:
From the question,
γ = (v₂-v₁)/[v₁(t₂-t₁)]....................... Equation 1
Where γ = coefficient of volume expansion, v₁ = initial volume, v₂ = Final volume, t₁ = initial temperature, t₂ = Final Temperature.
Given: v₁ = 26.1 cm³, v₂ = 26.2 cm³, t₁ = 25 °C, t₂ = 75 °C.
Substitute these values into equation 1
γ = (26.2-26.1)/[26.1(75-25)]
γ = 0.1/(26.1×50)
γ = 0.1/1305
γ = 7.66×10⁻⁵ K⁻¹
Hence the coefficient of volume expansion is 7.66×10⁻⁵ K⁻¹
Answer:
Acceleration a=0.5 m/s²
Explanation:
Given data
Mass m=12,900 kg=1.29×10⁴kg
Thrust of engine F=28,000 N=2.8×10⁴N
gravitational acceleration g=1.67 m/s²
To find
Acceleration
Solution
As we know that
The net force can be given as
From Newtons second law of motion we know that
Answer:
All metals have a shiny appearance (at least when freshly polished), are good conductors of heat and electricity; form alloys with other metals; and have at least one basic oxide.
Nonmetals have a dull, coloured or colourless appearance; are brittle when solid; are poor conductors of heat and electricity; and have acidic oxides.
Metalloids are metallic-looking brittle solids that are either semiconductors or exist in semiconducting forms, and have amphoteric or weakly acidic oxides.
There is no effect on earth's orbit due to similar force of gravity of black hole.
<h3> How would Earth's orbit change?</h3>
If our Sun was replaced with a black hole having the same mass, Earth's orbit will not changed because of the same force of gravitation of balck hole on earth. Due to this replacement, Earth's temperature will change because balck hole is not too hot like sun.
So we can conclude that there is no effect on earth's orbit due to similar force of gravity of black hole.
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