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Viktor [21]
2 years ago
15

1. What coefficients would balance the following equation?

Physics
2 answers:
Dovator [93]2 years ago
4 0

Answer:

B

Explanation:

Stolb23 [73]2 years ago
3 0

Answer:

no question matee

Explanation:

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How many air molecules are in a 13.0×12.0×10.0 ft room (28.2 L=1 ft3)? Assume atmospheric pressure of 1.00 atm, a room temperatu
aksik [14]

Answer:

1963.93 Moles

Explanation:

-We know the standard conversion ratio for the volume of a mole is 1 Mole=22.4L

Given volume of rooms as 13.0ft\times12.0ft\times10ft=1560 ft^3

Convert the volume into liters:1560\times28.2l=43992l

#From our conversion ratio above, we get the volume of air molecules in moles as:

V_m=\frac{43992L}{22.4L}\times 1\ mole\\\\=1963.93\ Moles

Hence, the volume of air molecules is 1963.93 Moles

4 0
2 years ago
Just about everyone at one time or another has been burned by hot water or steam. This problem compares the heat input to your s
kkurt [141]

Answer:

B. Steam burns the skin worse than hot water because the latent heat of vaporization is released as well.

Explanation:

It is given that both steam and the boiling water when in contact with the skin cools down from 100 to 34 degrees Celsius.

For any substance of mass m, the heat required to change the temperature by \Delta T is mC\Delta T (S.I. unit = Joules).

where C, the specific heat capacity is the same and a constant for both the condensed steam and the boiling water.  

But, there is a "hidden" energy (heat) released by the steam called latent heat

(given by mL, L = specific latent heat) which allows the phase transition (gas to liquid). While both of them are at the same temperature, their energy (heat) is different, which is why steam causes burns worse than boiling water

3 0
3 years ago
Describe how electromagnetic waves are formed and travel through space.
Arisa [49]

Answer:

as it travel through the space it behave like a wave and has an oscillating electric field components and an oscillating magnetic field

4 0
3 years ago
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How many watt-hours does a 80 watt light bulb use if it runs for 3.5 hours?
coldgirl [10]

Answer:

5 I Think

Explanation:

3 0
3 years ago
Help me for brainlest
Arada [10]

Answer:

I would say its 4

Explanation:

...........

3 0
3 years ago
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