Answer:
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Explanation:
See attachments for explanation.
The solar energy strikes the deck at the rate of 1400 W on every square metre.
1 answer:
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Answer:
Explanation:
Mass of the cable car, m = 5800 kg
It goes 260 m up a hill, along a slope of
Therefore vertical elevation of the car =
Now, when you get into the cable car, it's velocity is zero, that is, initial kinetic energy is zero (since K.E. = ). Similarly as the car reaches the top, it halts and hence final kinetic energy is zero.
Therefore the only possible change in the cable car system is the change in it's gravitational potential energy.
Hence, total change in energy = mgh =
where, g = acceleration due to gravity
h = height/vertical elevation
3 trams must be added
Explanation:
In this problem, there are 12 trams along the ring road, spaced at regular intervals.
Calling L the length of the ring road, this means that the space between two consecutive trams is
(1)
In this problem, we want to add n trams such that the interval between the trams will decrease by 1/5; therefore the distance will become
And the number of trams will become
So eq.(1) will become
(2)
And substituting eq.(1) into eq.(2), we find:
Learn more about distance and speed:
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