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A uniform rod AB of length 3r remains equilibrium on a hemispherical bowl of radius r as shown in figure.ignoring friction find the inclination of the rod with horizontal.
The 4 block in the figure is attached to a vertical rod by means of two strings. When the system rotates about the axis of the rod, the strings are extended and the tension in the upper string is 77.
In an internal combustion engine, air at atmospheric pressure and a temperature of about 20 ?C is compressed in the cylinder by a piston to 18.0 of its original volume, Estimate the temperature of the compressed air
A beaker of mass 1.5kg containing 3.2kg of water rests on a scale. A 3.2kg block of a metallic alloy of density 53400 kg/m is suspended from a spring scale is submerged in water of density 1000 kg/m.
The rocket moves for 3.00 s along its initial line of motion with an acceleration of 32.0 m/s2. At this time, its engines fail and the rocket proceeds to move as a projectile. Find out the maximum altitude reached by the rocket.
An airplane pilot tries to fly directly east with a velocity of 800.0 km/h. what is the relative velocity of the airplane to the surface of the earth
q1. a cube of ice is taken from the freezer at -8.6degc and placed in a 102 g aluminium calorimeter filled with 286 g
A 70 kilogram person is walking up a 15 % grade hill. Plot the fuel consumption of the person in watts vs. speed from 1 to 7 kilometers per hour in steps of 1. Where does the lost energy go
Sunlight is observed to focus at a point 18.5 cm behind alens. What is its power in diopters
Problem 1: An autographed baseball rolls off of a 0.56 m high desk and strikes the floor 0.65 m away from the desk. How fast was it rolling on the desk before it fell off? The acceleration of gravity is 9.81 m/s2.
A square loop (sides A, B, C, D = 11 cm; I = 11 A) lies in the vertical yz plane. Looked at from the right, the current is clockwise. What is the torque on the loop?
q1. a rectangular container measuring 23 cm 52 cm 61 cm is filled with water. what is the mass of this volume of water
wo converging lenses, each of focal length 14.9 cm, are placed 39.4 cm apart, and an object is placed 30.0 cm in front of the first lens. Where is the final image formed
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