Answer:
a)
b)
Explanation:
Given:
mass of the container,
displacement of the container,
Since the load is lifted using cable there will be weight acing downwards and the tension in the cable will act upward which will be equal in magnitude to the weight.
So,
(upwards)
Now the work done by the tension:
Now the work done by the gravity:
since displacement is in opposite direction to the gravity
Answer:
<em>Answer: Work equals force times distance. 3,000 J</em>
Explanation:
Work Done By A Force
When some force is applied and a displacement is achieved, the work done by the force is given by
Note that the work is a scalar magnitude as the result of the dot-product of two vectors. If the force and the displacement are parallel, then the vectors can be replaced as its magnitudes F,x and the work is
The dot product becomes a simple arithmetic product, i.e force times distance.
Sara weighs 500 Nw and she climbs up a 6 meter set of stairs. She needs to lift her weight up, so the force is the weight and the distance is the height of the stairs, thus
Answer: Work equals force times distance. 3,000 J
Answer: the radial distance between the 500-v equipotential surface and the 1000 v surface will be 8.91*106 times the charge Q.
Explanation: To find the answer, we have to know more about the equipotential surfaces.
<h3>What are equipotential surfaces?</h3>
- An equipotential surface is the locus of all points which have the same potential due to the charge distribution.
- Any surface in an electric field, at every point of which, the direction of electric field is normal to the surface can be regarded as equipotential.
- We have the equation for electric potential as,
, where k is equal to 1/(4π∈₀) = .
- equation for radial distance will be,
<h3>How to solve the problem?</h3>
- For the first surface, we can write the equation of potential as,
- For the second surface, we can write the equation of potential as,
- Thus, the radial distance will be,
Thus, we can conclude that, the radial distance between the equipotential surface of 500V and 1000V will be,8.91*106 times the charge Q.
Learn more about the equipotential surface here:
brainly.com/question/28044747
#SPJ4
If he pushes the ball it will swing back harder hitting him in the face. if he does not push it the airs force will slow it down to where he will be out of reach of the ball.
When a force of 8 N applied to a mass of 1 kg will cause it then mass will accelerate at the rate of
<u>Explanation</u>:
Given:
Force=8N
Mass=1kg
To find:
Acceleration rate=?
Solution:
Accrding to Netwon's second law of motion
Force = Mass x Acceleration
On substituting the values,
Solving the equation for Acceleration
Acceleration =8