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leva [86]
3 years ago
10

What is the relationship in which the ratio of the manipulated variable and the responding variable is constant? A. inverse prop

ortion B. direct proportion C. slope D. interdependent
Physics
1 answer:
Dafna1 [17]3 years ago
6 0
That's a direct proportion.
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To make ice, a freezer that is a reverse Carnot engine extracts 37 kJ as heat at -17°C during each cycle, with coefficient of pe
Dvinal [7]

Answer:

a) 6.4 kJ

b) 43.4 kJ

Explanation:

a)

Q_{a} = Heat absorbed = 37 kJ

β  = Coefficient of performance = 5.8

W = Work done

Heat absorbed is given as

Q_{a} = β W

37 = (5.8) W

W = 6.4 kJ

b)

Q  = work per cycle required

Q  = Q_{a} + W

Q  = 37 + 6.4

Q  = 43.4 kJ

5 0
3 years ago
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3 years ago
The fumes of lighted 'incense stick' spread in the whole room due to-​
Firlakuza [10]

Answer: burning of the incense and air drift in the room

Explanation:  the smoke will automatically rise to the top of the room and then with air drift if would help spread further around the room and spread the smell

7 0
3 years ago
To clearly see an image, the wavelength used must be at most 1/4 of the size of the object that is to be imaged. what frequency
LuckyWell [14K]
From the statement, the wavelength should be 1.6 cm * 1/4 = 0.4 cm. Then, we use the wave equation formula. The frequency is equal to the speed of light divided by the wavelength. First, let's use the SI units.

0.4 cm = 0.004 m

The speed of light is equal to 3 x 10^8 m/s

Frequency = 3 x 10^8 m/s ÷ 0.004 m
Frequency = 7.49 x 10^10 s^-1
5 0
3 years ago
Which statements accurately compare the tectonic activity of the planets? Check all that apply.
Andreyy89

Answer: 1, 4, and 6

Explanation:

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4 0
3 years ago
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