Answer:
0.03 m
Explanation:
Mirrors work on the principle of reflection.
Reflection occurs when a ray of light hits a surface and bounces back into the origina medium at a different angle.
We can solve this problem by using the magnification equation:
where
y' is the size of the image
y is the size of the object
q is the distance of the image from the mirror
p is the distance of the object from the mirror
Here we have:
y = 0.10 m is the height of the object
p = 0.20 m is the distance of the object from the mirror
q = -0.06 m is the distance of the image from the mirror (negative because it appears behind the mirror, so it is a virtual image)
Solving for y', we find the size of the image:
And the positive sign indicates that the image is upright.
Answer:
Explanation:
Given that.
Force acting on the particle, 
Position of the particle, 
To find,
(a) Torque on the particle about the origin.
(b) The angle between the directions of r and F
Solution,
(a) Torque acting on the particle is a scalar quantity. It is given by the cross product of force and position. It is given by :
So, the torque on the particle about the origin is (32 N-m).
(b) Magnitude of r, 
Magnitude of F, 
Using dot product formula,
Therefore, this is the required solution.
Answer:
λ = c / f or f = c / λ
f = 3.0E8 / 4.0E-7 = .75E15 / sec = 7.5E14 / sec = 7.5 X 10^14 /sec
Answer:
Fluid pressure from gravity is the weight of the fluid above divided by the area it is pushing on. Fluid pressure applies in all directions. Internal pressure of an object equals the external fluid pressure, otherwise the object could be crushed. Wind and heating can also create pressure.
Explanation:
