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hram777 [196]
3 years ago
12

A coin placed 30.8 cm from the center of a rotating, horizontal turntable slips when its speed is 50.8 cm/s.

Engineering
1 answer:
Anestetic [448]3 years ago
6 0

Answer:

a)(A) static friction

b)\mu _s=0.085

Explanation:

Given that

r = 30.8 cm

V = 50.8 cm/s

a)

(A) static friction

b)

At the condition of motion

Static friction = Centrifugal force

\mu _s\ m\ g=\dfrac{mV^2}{r}

\mu _s\ g=\dfrac{V^2}{r}

\mu _s\times 980=\dfrac{50.8^2}{30.8}

\mu _s=0.085

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D. 90 degrees.

Explanation:

Torque is a rotational force which moves an object in other direction. There should be 90 degrees out of phase to start, run winding currents with each other. Torque is produced by the rotational motion of an object. The angle of the object must be 90 degrees set in order to create torque.

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3 years ago
A rocket is to be designed to produce 5 MN of thrust at sea level. The pressure in the combustion chamber is 7 MPa and the tempe
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Answer:

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Explanation:

See the attached file for explanation.

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4 years ago
What are the four stages of BIM?
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3 years ago
Magnetic micro-generators are considered for the recovery of mechanical energy from vibrations. a)-True b)- False,
sleet_krkn [62]

Answer:

False

Explanation:

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7 0
3 years ago
64A geothermal pump is used to pump brine whose density is 1050 kg/m3at a rate of 0.3 m3/s from a depth of 200 m. For a pump eff
grin007 [14]

Answer:

835,175.68W

Explanation:

Calculation to determine the required power input to the pump

First step is to calculate the power needed

Using this formula

P=V*p*g*h

Where,

P represent power

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g represent gravity=9.81m/s²

h represent height=200m

Let plug in the formula

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P=618,030 W

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Using this formula

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Required power input=835,175.68W

Therefore the required power input to the pump will be 835,175.68W

5 0
3 years ago
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