Mathematics, 01.04.2021 04:50 SmokeyRN
Devora tested two engines. As each engine's rotation got faster, its temperature increased at a constant rate.
The first engine's temperature (in degrees Celsius) as a function of its rotation speed (in cycles per second) is given by the following table of values:
\text{Rotation}Rotationstart text, R, o, t, a, t, i, o, n, end text (cycles per second) \text{Temperature}Temperaturestart text, T, e, m, p, e, r, a, t, u, r, e, end text (degrees Celsius)
888 26.426.426, point, 4
111111 28.828.828, point, 8
141414 31.231.231, point, 2
The graph of the second engine's temperature (in degrees Celsius) as a function of its rotation speed (in cycles per second) is shown below.
The temperature of which engine increased more for each increase of 111 cycle per second?
Choose 1
Choose 1
(Choice A)
A
The first engine
(Choice B)
B
The second engine
(Choice C)
C
The temperatures of both engines increased the same
Which engine was hotter when it rotated at 202020 cycles per second?
Choose 1
Choose 1
(Choice A)
A
The first engine
(Choice B)
B
The second engine
(Choice C)
C
Both engines were equally hot
Answers: 3
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