Answer:
Explanation:
The heat required to change the temperature of steam from 125.5 °C to 100 °C is:
The heat required to change the steam at 100°C to water at 100°C is;
The heat required to change the temperature from 100°C to 0°C is
The heat required to change the water at 0°C to ice at 0°C is:
The heat required to change the temperature of ice from 0°Cto -19.5°C is:
The total heat required to change the steam into ice is:
b)
The time taken to convert steam from 125 °C to 100°C is:
The time taken to convert steam at 100°C to water at 100°C is:
The time taken to convert water to 100° C to 0° C is:
The time taken to convert water at 0° to ice at 0° C is :
The time taken to convert ice from 0° C to -19.5° C is:
Answer: If you meant 5 miles in 20 minutes than it’s 1 mile in 5 minutes
Explanation:
The velocity of sound in at 300C is 511.3 m/s.
Explanation:
The equation that gives the speed of sound in ar as a function of the air temperature is the following:
where
T is the temperature of the air, measured in Celsius degrees
In this problem, we want to find the speed of sound in ar for a temperature of
Substituting into the equation, we find:
So, the velocity of sound in at 300C is 511.3 m/s.
Learn more about sound waves:
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Answer:
100 V
Explanation:
Hi there!
Ohm's law states that 
where V is the voltage, I is the current and R is the resistance.
Plug the given information into Ohm's law (R=50, I=A)
Therefore, the voltage across this current is 100 V.
I hope this helps!
Answer:
INCREASES, BECAUSE ITS ANGULAR MOMENTUM IS CONSERVED.
Explanation: Interstellar cloud of Hydrogen is an accumulation of Hydrogen gas in the cloud.
As the Interstellar cloud of Hydrogen shrinks (reduces) in size,the rate of rotation of the shrinked Interstellar cloud Increases because its angular momentum is conserved. GASEOUS MOLECULES MAKE UP ABOUT 99% OF THE INTERSTELLAR CLOUD WITH HYDROGEN HAVING ABOUT 90% OF THE VOLUME OF GASES IN THE INTERSTELLAR CLOUD.
