A silver cube with an edge length of 2.28 cm2.28 cm and a gold cube with an edge length of 2.66 cm2.66 cm are both heated to 89.
1 answer:
You might be interested in
Answer:
No, the ride is not safe
Explanation:
From the diagram attached, it is seen that
................(1)
.......(2)
From the diagram,
............(3)
Put (3) into (2)
w = weight of chair + weight of child = 50 + 10 = 60 lb
g = 32 ft/s²
m = w/g = 60/32 = 1.875
L = 30 ft
T = 3 secs
since 246.74 lbs > 200 lbs, it is not safe because the stationary chair will creak
Answer:
Explanation:
From the given information:
The speed of a synchronous motor in relation to its frequency can be represented with the formula:
where,
the electrical frequency is measured in Hz
the number of poles = P
For us to estimate the number of poles to have 50 Hz - 60 Hz Power, then we need to relate the frequencies of the above equation.
i.e
Thus, we can conclude that 10 poles synchronous motor is attached with 12 poles synchronous generator in order to convert 50 Hz to 60 Hz power.