The answer for this question is o power
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Answer:
58.32 N
Explanation:
Area of a circle =
where r is the radius of the circle.
The cylinder has a radius of 0.02 m, its area is;
=
= x
= x 0.0004
= 1.2571 x
Area of the cylinder is 0.0013 .
The safety valve has a radius of 0.0075 m, its area is;
=
= x
= x 5.625 x
= 1.7679 x
Area of the valve is 0.00018 .
From Hooke's law, the force on the safety valve can be determined by;
F = ke
= 950 x 0.0085
= 8.075 N
Minimum force, , required can be determined by;
=
=
=
= 58.32
The minimum force that must be exerted on the piston is 58.32 N.
The average rate at which energy is transmitted along the string is 15.1 J/s.
<h3>
What is average power of a wave?</h3>
The average power of a sinusoidal wave is proportional to the square of the amplitude of the wave and the square of the angular frequency of the wave
P = ¹/₂μω²A²v
where;
- ω is angular frequency = 10π rad/s
- A is amplitude of the wave, = 0.35
- μ is linear mass density = 75 g/m = 0.075 kg/m
- k is angular wave number, k = 3π /m
- v is speed of the wave = ?
v = ω/k
v = (10π) / (3π)
v = 3.33 m/s
P = ¹/₂μω²A²v
P = ¹/₂(0.075)(10π)²(0.35)²(3.33)
P = 15.1 J/s
Thus, the average rate at which energy is transmitted along the string is 15.1 J/s.
Learn more about average power of a wave here: brainly.com/question/24228412
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Answer: Exothermic Reactions
In an exothermic reaction, energy is released because the total energy of the products is less than the total energy of the reactants. For this reason, the change in enthalpy, [latex]\Delta H[/latex], for an exothermic reaction will always be negative.
Explanation: please send a brainleast