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Q.A uniform ladder of length '2L'and mass 'm' leans against a wall in a vertical plane at an angle 'θ' to the horizontal. The floor is rough, having a coefficient of static friction 'µ'. A person of mass 'M' stands on the ladder at a distance 'D' from its base (see figure). If the wall is frictionless, the maximum distance ( Dmax) up the ladder that the person can reach before the ladder slips is ?
An electron by a charge of -67 μC is on the left, in the middle a proton charged with 45μC, and on the right an electron with a charge of -83μC. The middle charge in 72 cm away from each of the outer. A) What is the net force of the middle charge? B..
The Canadian Norman Wells Oil Pipeline extends from Norman Wells, Northwest Territories, to Zama, Alberta. What is the volume of oil in the pipeline if it is full at some instant in time
what mechanism bends the fabric of space time and accelerate an object close to the speed of light
A spring with a spring constatn of 1200 N/m is placed at the bottom of an inclined plane with an angle of 30 degrees with the horizontal. how far up the incline plane will the block move before it stops
Three deer, A, B, and C, are grazing in a field. Deer B located 64.00 m from dear A at an angle of 50° north of west. Deer C is located 76° north of east relative to dear A. The distance between deer B and C is 93m. What is the distance between de..
An elevator has a mass of 1170kg and carries a maximum load of 786 kg. A constant frictionalforce of 4260 N retards its motion upward. The accelerationof gravity is 9.8 m/s2. What power must the motor deliver at a instantaneous speed of 3.36 m/s i..
What must be the orbital speed of a satellite in a circular orbit 800 above the surface of the earth
An electron is orbiting a proton under the Coulomb force in a hydrogen atom at a radius of 0.52 × 10-10 m
A block is projected with a speed of 2.0m/s on a horizontal surface. If the block comes to rest in 1.2m, What is the coefficient of kinetic friction between the block and the surface
a series rcl circuit includes a resistance of 281 an inductive reactance of 860 and a capacitive reactance of 606. the
A canon is firing a projectile. Select an angle for a launch. Choose an angle between 15 and 75 degrees. Initial speed is 22 m/s. Mass is 7.3 gram. Determine the range of the projectile
Light of 650 nm is incident on two slits. A maximum is seen at an angle of 5.74° and a minimum of 6.46°. What is the order m of the maximum
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