A tank whose bottom is a mirror is filled with water to a depth of 20.1 cm . A small fish floats motionless 6.20 cm under the su
1 answer:
Answer:
A) 4.66 cm
B) 25.56 cm
Explanation:
A) real depth of fish = 6.2 cm
apparent depth =d
Now = 1.33
d = 4.66 cm
B) Image of fish will be formed 13.9 cm behind the mirror so its position from
surface of water will be
20.1 + 13.9 = 34 cm . This will be real depth of image
If D be its apparent depth then
\frac{34}{D}=1.33
D =\frac{34}{1.33}
D = 25.56 cm
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Explanation:
It is given that,
Radius of the front sprockets,
Radius of the rear sprockets,
The angular speed of the front sprocket is 12.3 rad/s,
(a) Linear speed of the front sprockets,
Linear speed of the rear sprockets,
(b) Let is the centripetal acceleration of the chain as it passes around the rear sprocket.
`Hence, this is the required solution.
Answer:
(a) 19.25 N-m
(b) 25.67 N-m
(c) 0 N-m
Explanation:
Given:
Length of the pedal arm (L) = 0.177 m
Downward force = 145 N
Magnitude of torque is given by the formula:
Where,
(a)
Given:
°
Therefore, torque is given as:
Therefore, the torque is 19.25 N-m.
(b)
Given:
°
Therefore, torque is given as:
Therefore, the torque is 25.67 N-m.
(c)
Given:
°
Therefore, torque is given as:
Therefore, the torque is 0 N-m.