Answer:
W = 1493.9 J = 1.49 KJ
Explanation:
The work done by the elevator on the object will be equal to the gain in is potential energy:
W = ΔP.E
W = mgΔh
where,
W = Work = ?
m = mass of object = 7.4 kg
g = 9.8 m/s²
Δh = gain in height = 20.6 m
Therefore,
W = (7.4 kg)(9.8 m/s²)(20.6 m)
<u>W = 1493.9 J = 1.49 KJ</u>
Answer:
The net force acting on this object is 180.89 N.
Explanation:
Given that,
Mass = 3.00 kg
Coordinate of position of
Coordinate of position of
Time = 2.00 s
We need to calculate the acceleration
For x coordinates
On differentiate w.r.to t
On differentiate again w.r.to t
The acceleration in x axis at 2 sec
For y coordinates
On differentiate w.r.to t
On differentiate again w.r.to t
The acceleration in y axis at 2 sec
The acceleration is
We need to calculate the net force
The magnitude of the force
Hence, The net force acting on this object is 180.89 N.
Answer:
The answer is that the worker should not be worried.
Explanation:
At equilibrium position, the net torque is equal to zero
∑tnet = 0
((-mg) * (D/2)) + ((-mg) * (D-d)) + (T * sinθ * D) = 0
Clearing the tension in the cable T:
Since this tension (14727.24 N) is less than the nominal tension (15354 N), the worker should not be concerned.
Answer:
They will be attracted.
Explanation:
They will be attracted because the negatives block the positive in the right balloon and positive attracts negative. Also, the positive attracts the negative in the left balloon. Therefore, they will be attracted. Hope this helps.
We have that the Percentage error is
From the Question we are told that
Sample size n=1000
Nine (9) target
width=45.0 cm
diameter d=1.48
Generally the equation for Probability of collision is mathematically given as
Where
Percent Error
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