Answer:
Explanation:
<u>Linear Dependence
</u>
Some variables are known or assumed to have linear dependence which means the graph of the ordered pairs (x,V) is a straight line.
If we know two points of the line, we can come up with the exact equation and therefore make predictions for other values of x
The linear depreciation gives us these points (2,820000) and (5,430000)
The general equation of the line is
Where V is the machine value and x is the number of years after purchase. We need to find the values of m and b.
Replacing the first point
Replacing the second point
Subtracting them
Replacing in any of the equations, say, the first one
Solving for b
The formula for the machine value V is
Answer:
7.481W
Explanation:
power= work done÷time
power= force × uniform velocity
a= ∆v/t
29.0ms=
=(0.72-0)÷29×10^-3
a=24.83m/s^2
Newton's second law
f=ma
=(0.84×24.83)
=20.86N
w=FD
v^2=u^2+2as
0.5184=0+49.66s
s=0.0104m
20.86×0.0104
=0.216944J
0.216944÷t
P=7.481W
Answer:
The law of conservation of energy can be seen in these everyday examples of energy transference: Water can produce electricity. Water falls from the sky, converting potential energy to kinetic energy. ... The cue ball loses energy because the energy it had has been transferred to the 8 ball, so the cue ball slows down.