5. A 25.0-g mass is attached to a vertical spring and it stretches 15.0 cm. It is then stretched an additional10.0 cm and then released. What is the maximum velocity of the mass? What is its maximumacceleration?Vmax =Dmax =

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Answered: 5. A 25.0-g mass is attached to a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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(b) An electric motor lifts a mass of 500 kg from the ground to a height of 30 m in 1.5 minutes. Calculate the motor's output power during operation. The gravitational acceleration, g, is 9.81 m. s-².
5. A simple pendulum at the UCR department of physics and astronomy has a length of 20 m, and the acceleration due to gravity at this location is measured to be 9.803 m/s². Calculate the period of the pendulum.
A vertical spring with a mass attached at its end stretches by an amount 20 cm before coming to rest. The same spring and mass is now placed on a smooth inclined plane with one end fixed to the top of the plane. The plane makes an angle of 30° with the horizontal. By how much will the spring stretch before coming to rest? |The spring on the inclined plane is stretched further by 15 cm and released from rest. What is its speed when it passes through the new equilibrium position?
3. Please calculate the annual electricity production of a wind farm with 20 turbines. The annual mean wind speed is 7 m/s and diameter of the blades is 20 m. If we assume power consumption of a person is 3,000 kWh, about how many people will this energy support? Annual electricity production (KWh) = K Vm³ At T Where: - - - K = 3.2 (factor based on turbine performance) Vm= annual mean wind speed (m/s) At = swept area of turbine (m2) T = number of turbines Suitable for medium- to large-scale wind turbines (> 200 m2 swept area)
38. Calculate the initial velocity of a 1.00 kg artillery shell that is moving north when it explodes into three fragments: 0.200 kg moving 500 m/s east, 0.500 kg moving 566 m/s north east, and a third piece moving 1000 m/s. 39. A 300-gram model airplane is flying 15.0 m/s straight north when a gust of wind applies a force of 75.0 N west on the airplane for a time of 80.0 ms. Calculate the velocity the airplane will have as a result of the gust of wind.

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5. A 25.0-g mass is attached to a vertical spring and it stretches 15.0 cm. It is then stretched an additional 10.0 cm and then released. What is the maximum velocity of the mass? What is its maximum acceleration? Vmax = amax