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VikaD [51]
3 years ago
5

What is the number of Kelvins between the freezing point and the boiling point of water at a pressure of 1 atm?

Physics
1 answer:
Semmy [17]3 years ago
5 0

Answer:100 K

Explanation:

We know that Freezing Point of water is 0^{\circ}C at 1 atm

Converting it to Kelvin we get 273.15 K

Boiling Point of water is 100^{\circ}C

converting it to Kelvin we get 373.15 K

Difference in the number we get =373.15-273.15=100 K

Temperature difference is independent of degree and will remain same for Celsius and Kelvin

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3 years ago
This problem is based on the whole idea of pressure but I’m having trouble on when the area circle formula is included.
Mice21 [21]

Answer:

6.23x10^6Pa

Explanation:

Data obtained from the question include:

F (force) = 490N

r (radius) = 0.005m

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P (pressure) =.?

First, we'll begin by calculating the area of the circlular heel. This is illustrated below:

Area of circle = πr^2

Area = 22/7 x (0.00)^2

Area = 7.86x10^-5m^2

Pressure is simply force per unit area. It represented mathematically as

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Pressure = 490/7.86x10^-5

Pressure = 6.23x10^6N/m2

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Therefore, the woman exert a pressure of 6.23x10^6Pa on the floor

8 0
3 years ago
In what part of the plant is glucose suger made?​
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3 years ago
Two neutron stars are separated by a distance of 1.0 x 1012 m. They each have a mass of 1.0 x 1028 kg and a radius of 1.0 x 103
son4ous [18]

To develop this problem it is necessary to apply the concepts related to Gravitational Potential Energy.

Gravitational potential energy can be defined as

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As M=m, then

PE = -\frac{Gm^2}{R}

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PART A) As half its initial value is u'=2u, then

U = -\frac{2Gm^2}{R}

dU = -\frac{2Gm^2}{R}

dKE = -dU

Therefore replacing we have that,

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Re-arrange to find v,

v= \sqrt{\frac{Gm}{R}}

v = \sqrt{\frac{6.67*10^{-11}*1*10^{28}}{1*10^{12}}}

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v = 1.83*10^7m/s

Therefore the velocity when they are about to collide is 1.83*10^7m/s

7 0
3 years ago
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zhuklara [117]

Answer:

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Explanation:

I don't know

Explanation:

Answer:

I don't know

Explanation:

I don't know

3 0
3 years ago
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