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A ladder is leaning against a vertical wall. The coefficient of friction between the ladder and the horizontal surface is μ1 = 0.295 and the coefficient of friction between the ladder and the wall is μ2 = 0.203. Find the maximum angle with the vertical ladder can make without falling on the ground.
You pull a 70 kg block up a 400 incline so that the tension of the rope is parallel to the incline. What is the net work done on the block
A 60-V generator supplies 4.5 kW of power. How much current does the generator produce
A proton (charge 1.6e-19C and mass 1.6e-27kg) is released from rest at 1m away from a very large flat insulator sheet which has a uniformly distributed charge with a charge density of -8.85 microCouloms/meter^2
Consider a series RLC circuit where R = 957 ? and C = 5.25 ?F. However, the inductance L of the inductor is unknown. To find its value, What is the inductance of the inductor in millihenrys
A satellite circles the earth in an orbit whose radius is twice theearth's radius. The earth's mass is 5.98 x 10 24 kg, and itsradius is 6.38 x 10 6 m. What is the period of the satellite
A high-speed lifting mechanism supports a 815 kg object with a steel cable 35.0 m long and 4.00 cm2 incross-sectional area. By what additional amount does the cable increase in length ifthe object is accelerated upward at a rate of 3.2 m/s2
An electron in a television picture tube travels at 3 x107 m/s and is acted on both by gravity and by theearth's magnetic field. Which exerts the greater force on the electron
The vertical displacement of particles in a string (when a wave is propagating through it) is given by y = (0.02) sin[(10?)t - (8?)x], What is the amplitude of the wave
A projectile is fired straight upward from the Earth's surface at the South Pole with an initial speed equal to one third the escape speed. What is the altitude of the projectile at this instant
Over the course of a multi-stage 4080-km bicycle race, the front wheel of an athlete's bicycle makes 2.00 106 revolutions. How many revolutions would the wheel have made during the race
What is the magnetic field strength. Consider a ladder 5 meters tall, and a 150 kg weight on top of it. The ladder is leaning against the wall.
A 3-MOhms resistor is connected in series with a 2 micro Farrad capacitor and a 6.0 V battery of negligible internal resistance
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