An air-filled capacitor is formed from two long conducting cylindrical shells that are coaxial and have radii of 30 mm and 80 mm
1 answer:
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Answer:
A. Increase in temperature is 0.0176 degree Celsius. b. the remaining energy will be lost.
Explanation:
The mass of copper block = 7kg
Initial speed = 4.0 m/s
Specific heat of copper = 0.385 j/g degree Celcius.
a. The increase in temperature is calculated below:
85% of energy is converted into internal energy.
b. The remaining 15 per cent of kinetic energy will be lost and it will be changed into other forms.
Answer:
The acceleration of the rocket is 10 m/s².
Explanation:
Let the acceleration of the rocket be m/s².
Given:
Mass of the rocket is,
Thrust force acting upward is,
Acceleration due to gravity is,
Now, force acting in the downward direction is due to the weight of the rocket and is given as:
Now, net force acting on the rocket in upward direction is given as:
Therefore, from Newton's second law, net force acting on the rocket is equal to the product of mass and acceleration.
Therefore, the acceleration of the rocket is 10 m/s².