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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 ?
A river flows due south with a speed of 1.0m/s . A man steers a motorboat across the river; his velocity relative to the water is 4.3m/s due east. What is the direction of his velocity relative to the earth
freight car with mass of 25000 kg rolls down an inclined track through a vertical distance of 1.5 m. What percentage of the initial kinetic energy is lost
Example of either positive freedom negative freedom (N). Indicate which each is by circling the Be able to explain your choice.
a basketball player grabbing a rebound jumps 79cm vertically. how much total time (ascent and descent) does the player spend
What is the relationship between the length of a wire and magnetic force, Is the relationship between current and magnetic force linear
A resistor with R = 2.2kΩ is connected to an AC generator that operates at 60 Hzwith an amplitude of 34 V. Find the amplitude of the current through the resistor. Find the average power dissipated in the resistor.
The weight of passengers on a roller coaster increases by 53% as the car goes through a dip with a 35m radius of curvature
A thin spherical shell of radius 20.0 cm has 5.0 µC of charge uniformly distributed over its surface. What is the electric field 10.0 cm from the center of the sphere
A lighthouse sweeps its beam of light around in a circle once every 6.0 s. To an observer in a spaceship moving away from Earth, What is the speed of the spaceship relative to Earth
Two masses M1 = 10 kilogram and M2 = 8 kilogram are accelerated by a force of 60 Newton at an angle of 53o above the horizontal. Find what is the tension in the rope between the masses
A popular pastime is to see who can push an object closest to the edge of a table without its going off. You push the 100 g object and release it 1.50 from the table edge. what was the object's speed as you released it
The left ventricle of the heart accelerates blood from rest to a velocity of + 20.3 cm/s. How much time does blood take to reach its final velocity
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