Answer:
383 J
Explanation:
m = 0.85 kg, h = 1.0 m, H = 47.0 m
Find KE at h
At h, total energy = KE + mgh
At H, KE = 0, total energy = mgH
Energy conservation:
KE + mgh = mgH
so KE = mgH - mgh = mg(H - h) = 0.85*9.8*(47.0-1.0) = 383 J
OPTION C is the correct answer.
Answer:
gadjgdasgdghgsdgd
Explanation:sorry need answer
Answer:
-0.056 is the deceleration
Answer:
Explanation:
When a camera shifts focus from a faraway object to a nearby object, the lens-to-film distance must increase. Likewise, when it shifts focus from a nearby object to a distant object, there must be an increase in the lens to film distance (that is, the image distance).
Therefore, if the picture of an object that is far away, the lens must move towards the film.
The focal length cannot be changed because it is fixed for a lens. Nevertheless, in order to focus on an object, the image distance can be changed.
