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Murljashka [212]

3 years ago

10

10. What two shapes make up a sphere? A. B.

1 answer:

Mashutka [201]3 years ago

8 0

Answer: B

Explanation: A sphere is a perfectly round geometrical object in three-dimensional space that is the surface of a completely round ball (viz., analogous to the circular objects in two dimensions, where a "circle" circumscribes its "disk"). Like a circle in a two-dimensional space, a sphere is defined mathematically ... This distance r is the radius of the ball, which is made up from all points.

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When water is boiled under a pressure of 2.00atm, the heat of vaporization is 2.20×106J/kg and the boiling point is 120∘C. At th

Vikki [24]

Answer:

2033219.05 J

Explanation:

V = Volume

P = Pressure = 2 atm

m = Mass of water = 1 kg

$L_v$ = Heat of vaporization = $2.2\times 10^6\ J/kg$

Work done in an isobaric system is given by

$W=-P\Delta V\\\Rightarrow W=-2\times 101325\times (1\times 10^{-3}-0.824)\\\Rightarrow W=166780.95\ J$

Work done is 166780.95 J

Change in internal energy is given by

$\Delta U=Q-W$

Heat is given by

$Q=mL_v\\\Rightarrow Q=1\times 2.2\times 10^6\\\Rightarrow Q=2.2\times 10^6\ J$

$\Delta U=2.2\times 10^6-166780.95\\\Rightarrow \Delta U=2033219.05\ J$

The increase in internal energy of the water is 2033219.05 J

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In a series circuit, one of the resistors is replaced with a resistor having a lower resistance value. how does this affect the

Assoli18 [71]

Current will increase.

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The moon's surface becomes hot during the long lunar day because the sun transfers heat to the moon

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Radiation would be the answer (:

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University Physics 9.68: Accelerating Compact Disc. A computer disc drive is turned on starting from rest and has constant angul

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Given that the mass of a liquid is 0.01kg and the volume of the liquid is 0.05m^3 . Calculate the density of the liquid

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Answer:

B.

Explanation:

Density = mass / volume

= 0.01/0.05

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