Answer:a) 20.944rad/s (b) 12.57m/s (c) 800rev/min²
Explanation:
3 hours and 30 minutes.Tell Juan to get a life.
Answer:
Option A: none
Explanation:
Specific heat capacity is the amount of heat energy required to raise the temperature of a substance per unit of mass.
From the question, the parameters given are; The heat of vaporization of nitrogen= 48 cal/g and that of water is 80 cal/g.
Using the formulae; Specific heat capacity,c= Q/ m× ∆T,----------–-----------------------------------------------------
STEP ONE: We will have to calculate all the energy numbers; 77k is approximately the boiling point of Nitrogen.
Energy required to decrease water from 15°C to 0°C = E(1).
0.1×10^3 g× 48 cal/gram..
= 4800 cal
Energy require to vaporize Nitrogen=E(2).
= 80 cal per gram×0.15(15-0)
= 180 cal
Energy required to decrease water from 15°C to 0°C is higher than that of the energy to vaporize Nitrogen, N2.
STEP 2: 180/4800× 15 = 0.5625
Therefore; 15-0.5625 =14.43
Answer= 14.43gC
Answer
given,
Mass of the solid sphere = 1800 Kg
radius of the sphere,R = 5 m
mass of the small sphere, m = 2.30 Kg
when the Point is outside the sphere the Force between them is equal to
when r>R
When Point is inside the Sphere
when r<R
where r is the distance where the point mass is placed form the center
Now Force calculation
a) r = 5.05 m
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F = 1.082 x 10⁻⁸ N
b) r = 2.65 m
