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Kobotan [32]
3 years ago
10

What is the massof the largest ruby?

Physics
1 answer:
alexandr402 [8]3 years ago
4 0
I think the answer is 2283g
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A well lagged copper calorimeter of mas 120g contains 70g of water and 10g ice both at 0°C . Dry steam at 100°C is passed in unt
Lina20 [59]

Answer:

7.6 g

Explanation:

"Well lagged" means insulated, so there's no heat transfer between the calorimeter and the surroundings.

The heat gained by the copper, water, and ice = the heat lost by the steam

Heat gained by the copper:

q = mCΔT

q = (120 g) (0.40 J/g/K) (40°C − 0°C)

q = 1920 J

Heat gained by the water:

q = mCΔT

q = (70 g) (4.2 J/g/K) (40°C − 0°C)

q = 11760 J

Heat gained by the ice:

q = mL + mCΔT

q = (10 g) (320 J/g) + (10 g) (4.2 J/g/K) (40°C − 0°C)

q = 4880 J

Heat lost by the steam:

q = mL + mCΔT

q = m (2200 J/g) + m (4.2 J/g/K) (100°C − 40°C)

q = 2452 J/g m

Plugging the values into the equation:

1920 J + 11760 J + 4880 J = 2452 J/g m

18560 J = 2452 J/g m

m = 7.6 g

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3 years ago
an 269 kg object is moved a distance of 1.9 m by a force if 580 j of work is done on the object what is the object acceleration
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Answer:

Explanation:

w=f*d=580*1.5=870J

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Jackson wants to fit into last year's Halloween costume, but he has been building muscle and has gained a few healthy pounds sin
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It would be A. Because think of the explanations Jasons friend could say to them that would be a negative 'statement'.
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Which of the following energies defines energy stored inside a spring?
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Elastic potential energy

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