Answer:
Explanation:
radius of cylinder r₁ = .02 m
radius of safety valve r₂ = .0075 m
force exerted by spring on safety valve = 950 x .0085 = 8.075 N .
Force required on piston of cylinder = F
Applying Pascal's law
8.075 / 3.14 x .0075² = F / 3.14 x .02²
F = 8.075 x .02² / .0075²
= 8.075 x 7.111
= 57.42 N .
Photovoltaic cells are well known for their ability to convert solar energy (1) into electrical energy.
Answer: This is because water has a higher Specific Heat Capacity than air.
Explanation:
The specific heat capacity of an object measures how much heat will be required to change its temperature.
Water has a higher specific heat capacity than air, so the temperature of the water will remain fairly constant even though the air surrounding the water is experience temperature changes.
Since air has a lower Specific Heat Capacity than water, heat from the sun will readily heat it up in comparison to water.
The last picture represents a pure compound
Answer:
160×10⁶ bar
Explanation:
Bulk modulus is defined as:
K = -V ΔP / ΔV
where V is the initial volume,
ΔP is the change in pressure,
and ΔV is the change in volume.
Given:
K = 160×10⁹ Pa
ΔV = -0.01V
160×10⁹ Pa = -V ΔP / (-0.01V)
160×10⁹ Pa = ΔP / 0.01
ΔP = 160×10¹¹ Pa
ΔP = 160×10⁶ bar
