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A uniform rod (mass M 3.00 Kg length L 3.00 m) is mounted to rotate freely about a horizontal axis that is perpendicular to the rod and that passes through the rod at a point o.500 m from one end of the rod.. The rod is released from rest in a horizontal position.
(a) What is its angular speed when the rod reaches its lowest position?
(b) What is the linear speed of the center of mass of the rod when it is in the vertical position?
To decide the amount of temporary hearing loss loud music can cause in humans, researchers studied a group of 20 adult females who were exposed to 108 dB music for 60 minutes.
A golf ball is struck with a five iron on level ground. It lands 92.7 away 4.10 later. What were (a) direction and (b) magnitude of the initial velocity.
A loop of wire in the shape of a rectangle of width 8 cm and length 90 cm and a long, straight wire carrying acurrent I= 5t^1.4-3t^1.8 downward lie on a tabletop; What is the direction of the induced current
The left face of a biconvex lens has a radius of curvature of magnitude 11.7 cm, and the right face has a radius of curvature of magnitude 19.6 cm. The index of refraction of the glass is 1.52. Calculate the focal length of the lens for light inci..
A heat engine working between 340.0oC and 630.0oC, takes in 8.277×106 J of heat and delivers 2.100×106 J of work per cycle. What is the maximum possible efficiency of an engine
A block of wood 10 cm by 10 cm by 40 cm with mass 3.2 kg and uniform density stands on its end on level ground. In the following, assume that static friction with the ground is large enough that if I push on the block, it does not slide. IS the an..
If the shear stress in steel exceeds about 4.00 108 N/m2, the steel ruptures. Decide the shearing force necessary to shear a steel bolt 1.05 cm in diameter.
Two plastic spheres, each carrying charge uniformly distributed throughout its interior, are initially placed in contact and then released, Find the maximum acceleration achieved by the sphere of mass 55.0g
A juggler on stilts throws a ball straight up, from a height of 2.5cm. It reaches a height of 3.5m, and then falls back to the ground. What is the impact velocity when it hits the ground
A block is at rest on a plank whose angle can be varied. The angle is gradually increased from 0 deg. At 27.1°, Calculate the kinetic coefficent of friction between the block and the plank
When a 2.75 kg fan, having blades 18.5 cm long, is turned off, its angular speed decreases uniformly from 10.0 rad/s to 6.30 rad/s in 5.00 s. (a) What is the magnitude of the angular acceleration of the fan?
Find the average magnitude of the induced emf if the change. The magnitude of the charge on a parallel plate capacitor is 4uC and the potential difference between the plates is 80V. What is the capacitance of this capacitor.
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