Answer:
E = 4410 J
Explanation:
The net energy change is equal to the change in potential energy
ΔPE = mgΔh = 50(9.8)(16) = 7,840 J
However some of that energy went into the stretch of the spring.
that stretch is found setting the spring force equal to the weight
kx = mg
x = 50(9.8)/35 = 14 m
so energy stored in the spring is
PS = ½kx² = ½(35)(14²) = 3,430
energy lost to friction is 7840 - 3430 = 4,410
A) Beneficial insects (e.g a bee) may be adversely affected
Answer:
density
Explanation:
Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth.
LET ME KNOW IF THIS HELPED :)
Answer:
Input work is the work done on a machine as the input force acts through the input distance .Other ways it would be the work done on a body or system, that is, forces that are applied to the body or system. This is in contrast to output work which is a force that is applied by the body or system to something else. Output work is the work done by a machine as the output force acts through the output distance. The machine does to the object to increase the output distance.
Explanation:
Explanation:
<u><em>Deviation</em><em> </em><em>:</em><em> </em></u><em> </em>
It means the difference between a expected value of a measurement or an observation vs the actual value.
<em><u>Incidence</u></em><em><u> </u></em><em><u>:</u></em>
A straight line, ray of light, etc.., hits a surface at a point.
