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A 14.8 kilogram monkey hangs from a cord suspended from the ceiling of an elevator. The cord can withstand a tension of 290 Newton and may breaks when the elevator accelerates upward. Find the elevator minimum acceleration at which the cord breaks?
m/s2
A Block A block in the shape of a rectangularsolid has a cross-sectional area of 4.00cm2 across its width, a front-to-rear length of15.1 cm, and a resistance of 925 . The material of which the block is made has 5.33 multiplied by 1022 conduction e..
q1. a solenoid is formed by winding 26.9 m of insulated silver wire around a hollow cylinder. the turns are wound as
The heating coil of a hot-water heater has a resistance of 20.0 and operates at 210 V. If electrical energy costs $0.080/kWh, what does it cost to raise 290 kg of water in the tank from 15 °C to 74° C.
A small piece of dust ofmass m = 4.7 µg travels through an electric aircleaner in which the electric field is 527 N/C. The electric force on the dust particle is equal to the weight of the particle. What is the charge on the dust particle?
A 2.00-nF capacitor with an initial charge of 5.06 µC is discharged through a 1.28-k? resistor. What is the maximum current in the resistor
During the Millikan experiment used to determine the charge on the electron, a charged polystyrene microsphere is released in still air in a known vertical electric field, How many excess electrons are on the sphere
question an object is 13 cm in front of a diverging lens with a focal length of 15 cm. use ray tracing to determine the
A proton is moving parallel to a uniform electric field. The electric field accelerates the proton and increases its linear momentum to 3.00 10-23 kg·m/s from 1.30 10-23 kg·m/s in a time of 6.80 10-6 s. What is the magnitude of the electric field?
An object of mass M = 3.5 kg slides from rest a distance d = 6 m down a frictionless inclined plane where it encounters a spring. When the block just touches the spring, how much gravitational potential energy has it lost
A boat takes 4 hours to travel 30 kilometer down a river, then 8 hours to return. Determine how fast is the river flowing
A uniform circular ring of charge Q= 7.30 microCoulombs and radius R= 1.10 cm is located in the x-y plane, centered on the origin. What is the magnitude of electric field E at point P, located at z= 2.80 cm.
A convex spherical mirror has a radius of curvature of 10.6cm. Calculate the size of the image
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