Answer:
Explanation:
Given
Pivot is at h=0.76 L
Where L is the length of String
Conserving Energy at A and B

where u=velocity at bottom

After coming at bottom the ball completes the circle with radius r=L-0.76 L
Suppose v is the velocity at the top
Conserving Energy at B and C

Eliminating m




A=v/t
So therefore 75/0.050= acceleration
So the answer is a= 1500 metres per second per second
Answer:
they can damage the atmosphere
Explanation:
if you release bad chemicals into the atmosphere it affects the air
Answer:
(a) 6.56 km
(b)
north of west
Explanation:
Given:

Let the resultant displacement vector be
.
As the resultant is the vector sum of all the vectors.


Answer:
Explanation:
Pinhole camera is a simple camera. It does not have a lens. The light passes from a hole and an inverted image is formed on the opposite side of the box.