Answer:
Explanation:
Given that,
The length of the beam L = 3.10m
The mass of the steam beam = 430kg
The mass of worker = 69.0kg
The distance from the fixed point to centre of gravity of beam =
and our length of beam is 3.10m
so the distance from the fixed point to centre of gravity of beam is
Then the net torque is
is the weight of steel rod
is the weight of the worker
Torque can now be calculated
≅ 9169Nm
<h3>Therefore,the magnitude of the torque is 9169Nm</h3>Answer:
1.58 W
Explanation:
Since the sound spreads uniformly in all directions, it must be in a form of a circle with radius of 12 m. So the area of the circle is
From the intensity of the sound we can calculate the power at 12 m
Answer:
v = 16.87 m/s
Explanation:
Given that,
Distance, d = 1.25 miles
d = 2011.68 m
Time, t = 1 minute 59.2 seconds
= 60 s + 59.2 s
= 119.2 s
We need to find the average speed of the horse. It is given by total distance covered divided by total time.
So, his average speed is 16.87 m/s.