Physical changes: melting, evaporating, and condensation. This is a physical change.
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The answer is C. 23.5°. <span>It's because of this </span>tilt<span> that the </span>Earth<span> experiences seasons as it orbits around the Sun. Imagine the Sun is at the center of a spinning record.</span>
we know the equation for the period of oscillation in SHM is as follows:
T = 2 * pi * sqrt(mass/k)
we know f = 1/T, so f = 1/(2 * pi) * sqrt(k/m).
since d = v*T, we can say v = d/t = d * f
the final equation, after combining everything, is as follows:
v = d/(2 * pi) * sqrt(k/m)
by plugging everything in
v = .75/(2 * pi) * sqrt((1 * 10^5)/(30))
We find our velocity to be:
v = 6.89 m/s
Answer:
Explanation:
11 = y/3+7
collecting like terms
11 - 7 = y/3
4 = y/3
multiplying both sides by 3 gives us
12 = y
therefore
y = 12
