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Fiesta28 [93]
3 years ago
10

12. Which of these is more dense?

Physics
1 answer:
Lena [83]3 years ago
3 0

Answer:

answer is E

Explanation:

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In an electrical circuit, "_____" refers to the rate at which electrical energy is transformed into another kind of energy.
Tems11 [23]

Answer:

<em>Electrical power</em>

Explanation:

<em>Electrical power:</em> Electric power (P) is defined as the energy (W) used or produced or transformed per seconds.

Power = Energy produced/transformed/time taken.

P = W/t................................ Equation 1

Where t = time taken

But,

W = VIt................................ Equation 2

Substituting equation 2 into equation 1

P = VIt/t

P = VI............................ Equation 3

or

P = V²/R or P = I²R.

The unit of power is J/s or Volt-ampere is called watt (W).

Large amount of electric power are required in the industry

1 kW = 1000 W

1 MW = 1000000 W

1 h.p = 3/4 kW.

8 0
3 years ago
According to the law of mass, 8 grams of hydrogen and 32 grams of oxygen will combine to form how many grams of water?
seropon [69]

Answer:

36 grams of water

Explanation:

mass of H2O = 0.5 x 18 = 9g

7 0
2 years ago
Guys please help me out I’ll give extra points
zvonat [6]

Answer: h = 3.34 m

Explanation:

If the hat is thrown straight up, then at its highest point it has no motion and no kinetic energy. All energy is potential energy

PE = mgh

h = PE/mg = 4.92 / (0.150(9.81)) = 3.34352... ≈3.34 m

8 0
3 years ago
Which is more common: a star blows up as a supernova, or a star forms a planetary nebula/white dwarf system?
bazaltina [42]
A planetary nebula is more common to occur than a supernova. It actually is a nebula, meaning mist or cloud but was called planetary nebulae by others because it looked like a planet. 

Supernova is a not a usual event to take place. 





6 0
3 years ago
It takes 56.5 kilojoules of energy to raise the temperature of 150 milliliters of water from 5°C to 95°C. If you
Debora [2.8K]
You'd get an extra 40/60 of the energy, or 2/3. Multiply 5/3 by the required energy to get the actual consumption.
7 0
3 years ago
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