Answer:
Convex or converging lens.
Because they help to magnify the image or increase the size of the image you are viewing when light is reflected on it or to make the quality of the image clearer to view.
Explanation:
They both make use of Convex or converging lens.
Both lenses are very important because they help to magnify the image or increase the size of the image you are viewing when light is reflected on it or to make the quality of the image clearer to view.
1. The man will be able to move the rock. See diagram.
Moment of Man's force : 400 N * 1.2 meter = 480 N-m
Rock's Weight = 50 Kg * 9.8 m/sec² = 490 Newtons
Moment of Rock's weight : 490 N * 0.80 meters = 392 N-m
<em><u> Moment of Man's Force is MORE : 480 N-m > 392 N-m</u></em><em><u> So man will be able to lift the rock.</u></em>2. Let is look at the diagram - second one.
Let us assume that the fulcrum (Pivot) is placed at X meters from the rock.
So moment of Girl's force about Pivot = 200 N * (2 - X) meters = 400 - 200 X
Moment of Rock's weight = 490 N * X = 490 X
As the Girl is able to lift the rock, 400 - 200 X > 490 X
Hence 400 > 200 X + 490 X
400 > 690 X
X < 400/690 = 0.58 meters
<u>
<em> If the Pivot is placed closer than 0.58 meters or 58 cm to the Rock, then </em></u>
<u>
<em> she can lift the rock.</em></u>
I think the small mass Sorry if I’m incorrect
Answer:
The value of 2.2 radians in degree is 126.11°.
Explanation:
Given that,
Angle = 2.2 radians
We need to calculate the value in degrees
We know that,
Hence, The value of 2.2 radians in degree is 126.11°.