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Where does gravitational force act on a body?
Gravitational force acts on the center of mass, which is the average position of mass in the body. This question related to Chapter 7 physics Class 11th NCERT. From the Chapter 7. Gravitation. Give answer according to your understanding. For more please visit here: https://www.tiwariacademy.com/ncerRead more
Gravitational force acts on the center of mass, which is the average position of mass in the body. This question related to Chapter 7 physics Class 11th NCERT. From the Chapter 7. Gravitation. Give answer according to your understanding.
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Why do objects appear weightless in artificial satellites?
The satellites and their contents are in free fall. They appear weightless. This is a question related to Chapter 7 physics Class 11th NCERT. From the Chapter 7. Gravitation. Answer according to your understanding. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/phRead more
The satellites and their contents are in free fall. They appear weightless. This is a question related to Chapter 7 physics Class 11th NCERT. From the Chapter 7. Gravitation. Answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-7/
How does gravitational force compare to electromagnetic force?
Electromagnetic forces are significantly stronger than gravitational forces at the atomic and molecular levels. Electromagnetic forces are significantly stronger than gravitational forces at the atomic and molecular levels. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/clRead more
Electromagnetic forces are significantly stronger than gravitational forces at the atomic and molecular levels. Electromagnetic forces are significantly stronger than gravitational forces at the atomic and molecular levels.
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Water falls from a height of 60 m at the rate 15 kg/s to operate a turbine. The losses due to frictional forces are 10 % of energy. How much power is generated by the turbine? Take g = 10 m / s².
To calculate the power generated by the turbine, we follow these steps: Step 1: Calculate the total power available due to falling water The power available is given by: Power = m × g × h Where: - m = mass flow rate of water = 15 kg/s - g = acceleration due to gravity = 10 m/s² - h = height = 60 m SRead more
To calculate the power generated by the turbine, we follow these steps:
Step 1: Calculate the total power available due to falling water
The power available is given by:
Power = m × g × h
Where:
– m = mass flow rate of water = 15 kg/s
– g = acceleration due to gravity = 10 m/s²
– h = height = 60 m
Substitute the values:
Power = 15 × 10 × 60
Power = 9000 W
Power = 9 kW
Step 2: Loss due to frictional forces
Since 10% of the energy is lost due to frictional forces, the effective power output would be
Effective Power = Total Power (1 − Loss Percentage)
Effective Power = 9 kW (1 − 0.1)
Effective Power = 9 kW × 0.9
Effective Power = 8.1 kW
The amount of power generated by the turbine is 8.1 kW.
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What causes tidal forces on Earth?
Tidal forces arise due to the difference of gravitational force created by the Moon and the Sun on different sections of Earth. This question regarding Chapter 7 physics Class 11th NCERT. From the Chapter 7. Gravitation. Give answer according to your understanding. For more please visit here: https:Read more
Tidal forces arise due to the difference of gravitational force created by the Moon and the Sun on different sections of Earth. This question regarding Chapter 7 physics Class 11th NCERT. From the Chapter 7. Gravitation. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-7/