1. Which of these is not a natural fibre?a. leatherb. juteC.Woold. cotton
2 answers:
You might be interested in
Answer:
The speed of the satellite is 7809.52 m/s
Explanation:
It is given that,
Radius of Earth,
Mass of earth,
A satellite moves in a circular orbit a distance of, above Earth's surface.
We need to find the speed of the satellite. It is given by :
R = r + d
So,
v = 7809.52 m/s
So, the speed of the satellite is 7809.52 m/s. Hence, this is the required solution.
Answer:
It will take 313.376 sec to raise temperature to boiling point
Explanation:
We have given that potential difference V = 120 Volt
Current i = 4.50 A
So resistance
Heat flow in resistor will be equal to
It is given that this heat is used for boiling the water
Mass of the water = 0.525 kg = 525 gram
Specific heat of water 4.186 J/gram/°C
Initial temperature is given as 23°C
Boiling temperature of water = 100°C
So change in temperature = 100-23 = 77°C
Heat required to raise the temperature of water
So
t = 313.376 sec
So it will take 313.376 sec to raise temperature to boiling point