Answer:
<h3>The answer is 19,800 J</h3>
Explanation:
The work done by an object can be found by using the formula
<h3>workdone = force × distance</h3>
From the question
force = 120 N
distance = 165 m
We have
work done = 120 × 165
We have the final answer as
<h3>19,800 J</h3>
Hope this helps you
Answer:
Light can pass through Object B faster than it can pass through Object A.
Explanation:
When light enters in the medium denser than air it bends towards the normal. Thus, if light enters in the medium with higher refracting index it slows down.
So, when light can pass through object B faster than that of object A as object A has higher refracting index than object B.
Speed of light is inversely proportional to the optical density. Optical density is directly proportional to refracting index. So, for higher optical density refracting index is higher and the speed of light is less.
Hence, optical density of object A is higher than that of object B.
Answer:
18.5 cm
Explanation:
From;
1/u + 1/v = 1/f
Where;
u= object distance = 86cm
image height = 23 cm
Radius of curvature = 37 cm
The radius of curvature (r) is the radius of the sphere of which the mirror forms a part.
Focal length (f) = radius of curvature (r)/2 = 37cm/2 = 18.5 cm
Therefore, the focal length of the mirror is 18.5 cm
<span>This statement is true - humans require a certain percentage of body fat to function effectively. As a result of childbearing, women's bodies require a higher level of body fat than men: roughly 10-13%, compared to 2-5%. </span>
The magnitude of force exerted on the woman by the floor when the lift is accelerating is 150 Newton.
<u>Given the following data:</u>
- Acceleration = 2.5
To calculate the force exerted on the woman by the floor when the lift is accelerating, we would apply Newton's Second Law of Motion:
<h3>
Newton's Second Law of
Motion.</h3>
Mathematically, Newton's Second Law of Motion is given by this formula;
Substituting the given parameters into the formula, we have;
Force = 150 Newton.
Read more on force here: brainly.com/question/1121817