I think the answer should be the last one. Magnets attract magnets with unlike poles and repel magnets with like poles
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Since v = dx/dt = 200t
I took the integral of dx = integral of 200t dt
and I got x = 100t^2 + C
So I plugged in 0.5 as t and got x = 25
So x = 25 miles
Answer:
the work done in raising the load is 24,750 J
Explanation:
Given;
load lifted by the crane with a force, F = 2750 N
height through which the load was raised, h = 9.0 m
The work done by the crane in raising the load is calculated as;
W = F x h
W = 2750 x 9
W = 24,750 J
Therefore, the work done by the crane in raising the load is 24,750 J
Answer
given,
speed of sound = 343 m/s
distance of tube opening to water level = 0.125 m
and another opening at a distance of = 0.385 m
frequency of tuning fork = ?
The difference between two different modes is given by:
l = 0.26 x 2
l = 0.52 m
f = 659.6 Hz