47. A car travels 85 km in the first half hour of a trip. The car continues to travel for 2 more hours and travels 200 km. What
1 answer:
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Answer:
Explanation:
Given
mass of ball is m
Spring constant is k
If a ball is undergoing a SHM motion then the total energy associated with it is
Total Energy
where A=maximum Amplitude
Elastic Potential Energy of the system at any moment is given by
where x=compression in the spring
moment at which kinetic(K) and potential energy(U) are equal
i.e.
Total energy
i.e. at x=0.707 A kinetic energy and potential energy are equal
the potential at the center of curvature of the arc = v = Q ∕ (4πε∘a) or
ATQ,
We have density of charge,
λ =
Where L is the rod's length, in this case the semicircle's length L = πr
Q is the charge on the rod
The potential created at the center by an differential element of charge is:
where k is the coulomb's constant
r is the distance from dQ to center of the circle
v = ∫ , Where a = radius, k = 1 / 4πε∘
v = or Q ∕ (4πε∘a)
To learn more about potential from the given link
#SPJ4
Answer:
a.
b.
Explanation:
Given:
The runner force average to find given the equations
a.
b.
Work done by the system by this force so