Work = (displacement) x (force in the direction of the displacement)
Since none of the force is in the direction of the displacement, the work it does
is zero. Something else is making the object move. It's not the 20N force.
Well, just for fun, let's see hat the form of the limit is
<span>v = dx/dt = b + 3 c t^2 </span>
<span>= 1.5 + 1.92 t^2 </span>
<span>========================= </span>
<span>now </span>
<span>from 1 to 3 </span>
<span>x(3)= 1.5*3 +.64*27=4.5+17.28 </span>
<span>= 21.78 </span>
<span>x(1) = 1.5+.64 = 2.14 </span>
<span>so </span>
<span>x(3)-x(1) = 19.64 </span>
<span>delta t = 3 - 1 = 2 seconds </span>
<span>so </span>
<span>v during interval = 19.64/2 </span>
<span>= 9.82 m/s </span>
<span>now check that with calculus v in the middle of that range </span>
<span>v(2) =1.5+ 1.92 (4) = 9.18 m/s </span>
<span>that makes sense, the parabola is headed up so the instant speed i the middle should be a bit less than average. </span>
Thermal conductivity is the ability of a material to conduct heat.
hope this helped:)
Ocean Currents is the factor that determines the air temperature in coastal regions having same latitude.
<u>Explanation:</u>
There are factors that use to determine air temperature. They are latitude, altitude, region, water current, etc and it is based on the combination of water, air, and land.
If two coastal regions situated in the same latitude means they are not in the same region. Another city can be in the same latitude but in longitude. All the coastal regions don't have the same air temperature.
The air temperature in coastal regions can measured by the Ocean Current. A hypothesis of using cold water and warm water use to determine the air temperature.
Answer:
the factor that contributed to the fact that he was able to survive this fall is due to the fact that his body is made up of bone which are strong and his skeleton also protected all his vitals internal organs. His body went limp after he was knocked in the head when he fell, all of these made room allowing his muscles to relax and this gave his bones the opportunity to absorb the impact of the fall