<span>In a
real machine, the work output is always less than the work input is true. The answer
is letter A. it follows the law of entropy where no energy can be converted completely
into work. Under this law, Carnot’s theorem states that Carnot’s engine can
perform 100% of work. However, no such engine has ever succeeded the conversion
of work into 100%. The greatest efficiency so far is at 80%. Because there will always be factors that
could affect the conversion of work. </span>
Answer:
The answer to your question is given below.
Explanation:
The following data were obtained from the question:
Velocity (v) = 45 m/s
Time 5 (t₅) = 5 s
Time 6 (t₆) = 6 s
Displacement at 5 s (d₅) =.?
Displacement at 6 s (d₆) =.?
1. Determination of the displacement after 5 s.
Velocity (v) = 45 m/s
Time 5 (t₅) = 5 s
Displacement at 5 s (d₆) =.?
Velocity = Displacement /Time
v = d₅ /t₅
45 = d₅ / 5
Cross multiply
d₅ = 45 × 5
d₅ = 225 m
2. Determination of the displacement after 6 s.
Velocity (v) = 45 m/s
Time 6 (t₆) = 6 s
Displacement at 6 s (d₆) =.?
Velocity = Displacement /Time
v = d₆ /t₆
45 = d₆ / 6
Cross multiply
d₆ = 45 × 6
d₆ = 270 m
Summary:
Time >>>>>> Displacement
5 >>>>>>>>> 225 m
6 >>>>>>>>> 270 m
From the calculations made above the displacement of the ball after 6 seconds is greater than the displacement after 5 seconds.
Missing picture in the text. I've found it here:
https://www.flickr.com/photos/
[email protected]/6791933847/in/photostream
Solution:
Circuit 1)
The three resistors are in series. So the equivalent resistance of the circuit is
So the current flowing through each resistor is the same, and it is given by Ohm's law:
And the voltage drop across each resistor is given by Ohm's law as well:
Circuit 2)
The three resistors are in parallel, so their equivalent resistance is given by
The voltage drop across each resistor is the same, and it is equal to the voltage of the battery:
while the current across each resistor is given by Ohm's law:
Because lava is in the center and lavas hot