Answer:
The answer is C. More water is entering the oceans from melting sea ice than is leaving through evaporation.
Explanation:
- <u><em>A primary cause for increased mass of water entering the ocean is the calving or melting of land ice (ice sheets and glaciers)</em></u>
Answer:
a) t =12[s]; b) x = 348[m]
Explanation:
We can solve this problem using the following kinematics equations:
a)
where:
vf = final velocity = 12 [m/s]
vo= initial velocity = 6 [m/s]
a = acceleration = 0.5[m/s^2]
t = time [s]
Now clearing the time t, we have:
b)
We can calculate the displacement for the first 12 [s] then using the equation for the constant velocity we can calculate the other displacement for the 20[s].
The we can calculate the second displacement for the constant velocity:
x = x1 + x2
x = 108 + 240
x = 348[m]
I think the answer is B 1:100
The translation kinetic energy would be
1/2mv^2 thus
1/2* 7 * 16
which comes to 56
There are several types of work. Let’s talk about mechanical work:
W = F*d
So you need to know the force and the distance.
There are several ways to calculate the power. First:
P=W/t
So you can calculate it like that if you have already calculated the work. Remember W is F*d, so:
P=F*d/t
Remember d/t is also velocity:
P=F*v
So you can also calculate the power if you know the force and the velocity, with no need to know the work or the distance.
So in both cases we have a formula that requires to know the force<span>.
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