Answer:
(a)
(b)
Explanation:
(a) The linear speed in a circular motion is defined as the distance traveled in one revolution divided into the time taken to complete one revolution. So, we have:
Here r is the radius of the circular motion, that is, the distance from the central shaft to the blade tip. As can be seen this time is the period, which is defined as:
is the angular speed. Replacing this in the linear speed equation:
(b) The radial acceleration is given by:
The distance of the image formed is 44.27 cm and the magnification of the image is 0.7.
<h3>Location of the image</h3>
The image distance formed by the lens is calculated as follows;
1/v + 1/u = -1/f
where;
- v is the image distance
- u is the object distance
- f is the focal length of the lens
1/v = -1/f - 1/u
1/v = -(-1/26) - 1/63
1/v = 1/26 - 1/63
1/v = 0.022588
v = 1/0.022588
v = 44.27 cm
<h3>What is magnification of lens?</h3>
The magnification of a lens is defined as the ratio of the height of an image to the height of an object.
<h3>Magnification of the image formed</h3>
The magnification of the image is calculated as follows;
Magnification = image distance/object distance
M = 44.27/63
M = 0.7
Thus, the distance of the image formed is 44.27 cm and the magnification of the image is 0.7.
Learn more about magnification here: brainly.com/question/1599771
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Answer:
Pressure = 1194.03 N/m
Explanation:
Given the following data;
Force = 800 N
Area = 0.67 m²
To find the pressure on your feet;
Mathematically, pressure is given by the formula;
Pressure = force/area
Pressure = 800/0.67
Pressure = 1194.03 N/m
Answer:
Weight of the box? 980 N
Value of the normal force? 630 N
Acceleration of the box? 7.5 m/s^2
Explanation:
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