Answer:
0.26386
Explanation:
T₁ = Tight side tension = 1000 N
T₂ = Slack side tension = 100 N
θ = Wrap angle = 500° = 500π/180 radians
μ = Coefficient of friction
Belt tension theory
Taking natural logs on both sides
∴ Coefficient of friction is 0.26386
I think the answer is C) 0.25v I’m not sure tho
Answer:
Explanation:
A multipurpose transformer can act as step up as well as step down transformer according to the desired setting by a user.
When the voltage at the output is greater than the voltage at the input of the transformer then it acts as step-up transformer and vice-versa acting is a step down transformer.
Given that:
input (primary) voltage of the transformer,
no. of turns in the primary coil,
- When the output voltage is 5.60 V:
turns compensating the losses
- When the output voltage is 12.0 V:
turns compensating the losses
- When the output voltage is 480 V:
turns compensating the losses
Answer:
b. The universe may continue to expand.
Explanation:
The most supported theory about the future of the universe is that, it may continue to expand up to such point that it will become too cold to allow any forms of life to pull through. This is popularly known as the "Big Freeze."
Such acceleration of expansion is caused by the so-called, "dark energy." This also explains why the <u>acceleration of expansion is not constant</u>. This thereby causes the distance between galaxies to <em>grow farther apart.</em>
Answer:
Piston movement of TDC to BDC is called stroke.
Explanation:
Step1
In any engine fuel is burned inside the cylinder and forces the piston to move from top dead center to bottom dead center. First piston is moved from top dead center to bottom dead center to allow the suction of fuel inside the cylinder. Then piston move toward top dead center and compresses the fuel. This process is called compression of fuel. Then fuel is burned with the spark inside the cylinder and the piston moves toward bottom dead center. This process is called expansion process. Last process is the expansion process that allows the exhaust out of the cylinder.
Step2
The piston reciprocates from bottom position of the cylinder to top position of the cylinder and vice versa. So, the motion of piston from top center to bottom center is called stroke. One movement of piston from TDC to BDC is called one stroke. There are total four strokes in petrol engine and diesel engine. So, two strokes are equal to one cycle or one rotation of crank and four strokes are equal to two rotation of crank.
Thus, piston movement of TDC to BDC is called stroke.