Answer:
f = -60 cm, this means tha the focal point is on the same side as the side where the object is located.
Explanation:
let u be the distance from the lens to the object and u = -35 cm, v be the distance from the lens to the image and m is the magnification and m = -v/u and f is the focal point.
We can use the equation for Newtons third law.
fv² - iv² = 2as
Variables:
fv = final velocity (0)
iv = inital velocity (25)
s = distance traveled (?)
a = acceleration (-4.2)
We are given all variables except "s".
Solve for s:
fv² - iv² = 2as
0² - 25² = 2(-4.2)s
625 = -8.4s
74.4 ≈ s
Since 74.4 < 75, the car does not hit the deer.
Best of Luck!
Answer:
4Hz (240 cycles/60 seconds = 4 cycles/second)
Explanation:
hope this helped!
Answer:
The minimum distance between two points on the object that are barely resolved is 0.26 mm
The corresponding distance between the image points = 0.0015 m
Explanation:
Given
focal length f = 50 mm and maximum aperture f>2
s = 9.0 m
aperture = 25 mm = 25 *10^-3 m
Sin a = 1.22 *wavelength /D
Substituting the given values, we get –
Sin a = 1.22 *600 *10^-9 m /25 *10^-3 m
Sin a = 2.93 * 10 ^-5 rad
Now
Y/9.0 m = 2.93 * 10 ^-5
Y = 2.64 *10^-4 m = 0.26 mm
Y’/50 *10^-3 = 2.93 * 10 ^-5
Y’ = 0.0015 m
1)due to it's position in the gravitational field
2)due to it's motion
