Answer:
A
Explanation: A is a example of Air resistance force, which is a contact force.
The apparent shift <span>is the apparent in the position of an object when viewed from two locations.
Hope this helps :)</span>
Explanation:
Recall the equation for time is distance divided by speed. Here you can use that to solve for "t".
Answer:
Explanation:
the light ray leaving a medium in contrast to the entering or incident ray.
Answer:
Answered
Explanation:
The radius of curvature of the mirror R = 20 cm
then the focal length f = R/2 = 10 cm
(a) From mirror formula
1/f = 1/di + /1do
then the image distance
di = fd_o / d_o - f
= (10)(40) / 40-10
= 30.76 cm
since the image distance is positive so the image is real
ii) when the object distance d_0=20 cm
di = 10×20/ 20-10
= 20
Hence, the image must be real
iii)when the object distance d_0 = 10
di = 10×10 / 10-10 = ∞ (infinite)
the image will be formed at ∞
here also image will be real but diminished.
