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alekssr [168]
3 years ago
9

What is the final temperature when 50 g of water at 20°c is mixed with 75 g of water at 60°c

Physics
1 answer:
tatyana61 [14]3 years ago
4 0
44C i think. Do you have options for the answer?
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Which of the following properties of materials does NOT affect resistance?
Shalnov [3]

Answer:

B thickness

Explanation:

thickness

4 0
3 years ago
The flywheel of a steam engine runs with a constant angular speed of 113 $rev/min$. When steam is shut off, the friction of the
Oksana_A [137]

Answer:

α = - 1.883 rev/min²

Explanation:

Given

ωin = 113 rev/min

ωfin = 0 rev/min

t = 1.0 h = 60 min

α = ?

we can use the following equation

ωfin = ωin + α*t      ⇒     α = (ωfin - ωin) / t

⇒     α = (0 rev/min - 113 rev/min) / (60 min)

⇒     α = - 1.883 rev/min²

6 0
3 years ago
The speed of molecules is indirectly related to a measurement called _____.
seraphim [82]

The average speed of all the molecules in an object
or sample of a substance is related to its temperature ...
and not indirectly at all.
 
4 0
3 years ago
Read 2 more answers
If a wave has a frequency of 74 Hz and a speed of 444 m/s, what is the wave's wavelength?
DaniilM [7]

Answer:

6 m

Explanation:

velocity = wavelength x frequency

444 m/s = wavelength x 74 Hz

444 m/s / 74 Hz = wavelength

wavelength = 6m

4 0
2 years ago
Which transformation could take place at the anode of an electrochemical cell?
erica [24]
As I found out the choices for your question which are: 

<span>A) F2 to F-
B) Cr2O7²- → Cr2+ 
C) O2 to H2O
D) HAsO2 to As
</span>
Unfortunately, the answer does not belong to the choices provided. In fact, it is the oxidation half-reaction that occurs at the anode of an electrode for it to transform chemical energy to consumable electrical energy.
7 0
3 years ago
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