Answer:
Explanation:
Given
,,,
The tension of the spring is
The force in the spring is equal to centripetal force so
But Fc is also
Fc=KxΔr
Replacing
total distance is
The answer is A. This is a statement of Newton's First Law of Motion.
Consider Newton's Second Law, which for constant mass says F = ma. If forces are balanced, F = 0. Therefore m*a = 0. Since m has a nonzero value, we find that a = 0.
The object is not accelerating when forces are balanced, i.e. it's velocity isn't changing. It is moving at a constant speed when this velocity is nonzero, and is stationary when the velocity is zero.
I hope this helps you :)
Answer:
Mountains
- When 2 tectonic plates press on each other, the may elevate the land.
An airplane has to elevate to fly
Answer:
M = 222 fringes
Explanation:
given
λ = 559 n m = 559 × 10⁻⁹ m
radius = 0.026 mm = 0.026 ×10⁻³ m
length of the glass plate = 22.1 ×10⁻² m
using relation
= 221.79
= 221 (approx.)
hence no of bright fringe
M = m + 1
= 221 +1
M = 222 fringes