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dimaraw [331]
3 years ago
14

A glass of juice at 20°C was kept in the open. After 30 minutes, the temperature of the Juice remained the same. Which statement

is correct?
A) The temperature of the surrounding air was greater than 20°C

B) The temperature of the surrounding air was less than 20°C

C) The temperature of the juice was equal to the temperature the surrounding air

D) The temperature the juice was less than the final temperature of the surrounding air
Physics
2 answers:
devlian [24]3 years ago
7 0

The answer would be B the temperature of the juice was the temperature of the surrounding air

just olya [345]3 years ago
6 0

Answer: The temperature of the juice was equal to the temperature of the surrounding air.

Explanation:

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RoseWind [281]

Answer:

Q = 913.9 gpm

Explanation:

The Hazen Williams equation can be written as follows:

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Q = Flow Rate in gallon/min (gpm) = ?

d = pipe diameter in inches = (400 mm)(0.0393701 in/1 mm) = 15.75 in

C = roughness coefficient = 100

Therefore,

4\ x \ 10^{-4} = \frac{4.52\ Q^{1.85}}{(100)^{1.85}(15.75)^{4.87}}\\\\Q^{1.85} = \frac{4\ x \ 10^{-4}}{1.33\ x\ 10^{-9}} \\\\Q = (300384.75)^\frac{1}{1.85}

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5 0
3 years ago
The speed v of a sound wave traveling in a medium that has bulk modulus b and mass density ρ (mass divided by the volume) is v=b
PilotLPTM [1.2K]

As it is given that Bulk modulus  and density related to velocity of sound

v = \sqrt{\frac{B}{\rho}}

by rearranging the equation we can say

B = \rho * v^2

now we need to find the SI unit of Bulk modulus here

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B = \frac{kg}{m^3} * (\frac{m}{s})^2

so SI unit will be

B = \frac{kg}{m* s^2}

SO above is the SI unit of bulk Modulus

3 0
3 years ago
Two large non-conducting plates of surface area A = 0.25 m 2 carry equal but opposite charges What is the energy density of the
Stells [14]

Answer:

5.1*10^3 J/m^3

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Using E = q/A*eo

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8 0
3 years ago
A 5.00 kg object oscillates back and forth at the end ofa spring whose spring constant is 49.3 N/m. An obersever istraveling at
defon

Answer:

5.571 sec

Explanation:

angular frequency = √ (k/m) = √ (49.3 / 5) = 3.14 rad/s

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SOVA2 [1]

Answer:

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8 0
3 years ago
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