Answer:
nothing moves if anything other doesn't move it.
natural position of things is the resting
Explanation:
yeah that's it
Answer:
Babies often struggle to go to sleep sometimes warm milk and sooting sounds help babies sleep
Explanation:
Answer:
![F=175.2N](https://tex.z-dn.net/?f=F%3D175.2N)
Explanation:
The relationship of between fundamental frequency, density of the string, length and tension of the string is:
![L=\frac{1}{2f} \sqrt{\frac{F}{\frac{L}{m} } }](https://tex.z-dn.net/?f=L%3D%5Cfrac%7B1%7D%7B2f%7D%20%5Csqrt%7B%5Cfrac%7BF%7D%7B%5Cfrac%7BL%7D%7Bm%7D%20%7D%20%7D)
where L/m is the linear density.
make F the subject of the formula
![F=4L^{2}f^{2} \frac{L}{m}](https://tex.z-dn.net/?f=F%3D4L%5E%7B2%7Df%5E%7B2%7D%20%20%5Cfrac%7BL%7D%7Bm%7D)
substitute the values
![F=4*0.805^{2} *65.4^{2} *(1.58*10^{-2} )\\F=175.2N](https://tex.z-dn.net/?f=F%3D4%2A0.805%5E%7B2%7D%20%2A65.4%5E%7B2%7D%20%2A%281.58%2A10%5E%7B-2%7D%20%29%5C%5CF%3D175.2N)
Answer:
a) No-Load Current will increase
b) The magnetising reactance will increase
c) The secondary voltage will decrease
Explanation:
a) when an air ap is made in the transformer core then more current is required for the magnetisation of core. Hence, no-load current will incraese.
b) with the air gap the magnetomotive force increases. As a result, the angle between the voltage and current increases. Consequently, power factor decreases. Power factor always decreases when the reactive behaviour of circuit incraeses. Hence, Magnetisation reactance will increase.
c) Secondary voltage decreases due to air gap. Therefore, it is said that with the air gap the efficiency of the transformer decreases.
Speed = (distance) / (time)
Speed = (
Velocity = speed, and its direction
The velocity of the plane is 10.2 miles per second East.
(about 48 times the speed of sound)