Answer:
Explanation:
T=fd
f=170N
d=0.155m
T=170*0.155
T=26.35Nm⁻
i don't know how to convert to pound foot
the answer is correct in newton meters anyway(Nm⁻¹)
Answer:
3.46 seconds
Explanation:
Since the ball is moving in circular motion thus centripetal force will be acting there along the rope.
The equation for the centripetal force is as follows -
Where, 
is the mass of the ball, 
is the speed and 
is the radius of the circular path which will be equal to the length of the rope.
This centripetal force will be equal to the tension in the string and thus we can write,
and, 
Thus, 
m/s.
Now, the total length of circular path = circumference of the circle
Thus, total path length = 2πr = 2 × 3.14 × 2 = 12.56 m
Time taken to complete one revolution = 
= 
= 3.46 seconds.
Thus, the mass will complete one revolution in 3.46 seconds.
Answer:
a) If the thermometer is placed well below the condenser it will record a higher temperature.
b) If the thermometer is placed well above the condenser it will record a lower temperature.
Explanation:
A) ) If the thermometer is placed below the opening to the condenser, a higher temperature will be recorded than if it is placed close to the opening since the bulb is contact with both the vapuor and liquid that is entering the condenser.
B) If the thermometer is placed above the condenser, a lower temperature will be recorded than if it is placed close to the opening since the bulb is not in full contact with both the vapuor and liquid that is entering the condenser.
Answer:
(I). The initial rotation rate is 4.29 rad/s.
(II). The revolutions is 3932.
Explanation:
Given that,
Time = 1.6 h
Angular velocity = 41 rpm
(I). We need to calculate the initial rotation rate in rad/s
(II). We need to calculate the revolutions
Using formula of revolutions
Hence, (I). The initial rotation rate is 4.293 rad/s.
(II). The revolutions is 3932.
Let's say there's a magnetic field B passing through a conductor loop with an area A. The magnetic flux through the loop, if B is constant and perpendicular to the loop, is B multiplied by A. Now let's say the magnetic flux is changing. This can be caused by a combination of the strength of B changing, A changing, or the orientation of B or the loop changing.
Lenz's law states that the changing magnetic flux induces a current in the loop such that the induced current creates its own magnetic field to oppose the change in the flux.
