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particals (mass of each =0.20kg) are placed at the 40-cm and100cm marks of a meter stick of negligible mass. this rigid body isfree to rotate about a frictionless pivot at the 0cm end. the bodyis released from rest in the horizontal position. what is the initail angular acceleration on the body?
If the coefficient of friction between the block and the floor is 0.40, what is the mass of the block.
A 1300-kg car moving on a horizontal surface has speed v = 55km/h when it strikes a horizontal coiled spring, What is the spring stiffness constant of the spring
Suppose that by stirring 854 g of water you are able to increase its temperature from 19 degrees C to 21 degrees C. Find the increase in the water's entropy
A college student is working on her physics homework in her dorm room. Her room contains a total of 6x 10^26 gas molecules. As she works, her body is converting chemical energy into thermal energy at a rate of 125 W.
A cylinder of length L is resting at the base of a surface inclined at an angle alpha above the horizontal. The cylinder, with mass Mc and radius Rc, is free to rotate about an axis through its center. The coefficient of kinetic friction between t..
Light of wavelength 380 nm is incident on the face of a silica prism at an angle of 1 = 64.2 (with respect to the normal to the surface). Find the angle between the incident and emerging rays
A ceiling fan with 89 diameter blades is turning at 65. Presume the fan coasts to a stop 30 after being turned off. Throughout how many revolutions does the fan turn while stopping.
the electric field midway between two equal but opposite point charges is 747 nc and the distance between the charges
Find out the direction of the train motion
A person has a far point of 21 cm. This means that the person’s corrective lenses should produce an image 21 cm in front of the eye for an object that is very far away.
One of the most efficient engines ever built is a coal-fired steamturbine in the Ohio valley, driving an electric generator as itoperates between 1870°C and 430°C. What is its maximum theoretical efficiency
varying coefficient of friction a box is sliding with a speed of 4.50 ms on a horizontal surface when at point p. it
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