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A conducting spherical shell of inner radius b and outer radius c is concentric with a small metal sphere of radius a < b. The metal sphere has a positive charge Q. The total charge on the conducting spherical shell is -Q. (Assume the potential is zero very far from all charges. (a) What is the electric potential of the spherical shell? (b) What is the electric potential of the metal sphere?
Two small spheres hang in equilibrium at the bottom ends of threads, 40.0 cm long, Find the distance between the centers of the spheres
Using Newtons law of gravitational force Find the magnitude of the gravitational exerted by one mass on the other
The pilot of an airplane notes that the compass indicates a heading due west. find the velocity of the airplane relative to the ground
A charge particle of mass .0020kg is subjected to a 6 T magnetic field which is acts as a right angle to its motion. if the particle moves in a circle of radius .20m at a velocity of 5.0 m/s. what is the magntiude of the charge on the particle.
q1. a bumper car with mass m1 108 kg is moving to the right with a velocity of v1 4.6 ms. a second bumper car with
High-impact activities are hard on the joints and can cause significant damage to the cartilage in the knees. what is the maximum change in thickness of the cartilage
Two point charges Q1 = +4.55 nC and Q2 = ?1.65 nC are separated by 50.0 cm. (a) What is the electric potential at a point midway between the charges? (b) What is the potential energy of the pair of charges? What is the significance of the algebrai..
A large tank is divided into two parts by a partition. The first part contains 5 kg of refrigrtant-134a at 80oC, 900 kPa. Determine the work and heat transfer during this process
Kieran takes off down a 50m high, 10° slope on his jet-powered skis. The skis have a thrust of 320 N. The combined mass of skis and Kieran is 50 kg (the fuel mass is negligible). Kieran's speed at the bottom is 40 m/s. What is the coefficient of k..
A 94.0 cm pendulum is released from a small angle. After 113 oscillations the amplitude is one half of its original value. The damping is proportional to the speed of the pendulum bob. Find the value of the damping coefficient, ?, (in Hz).
A person eats a dessert that contains 230 kcal. The skin temperature of this individual is 36° C and that of her environment is 21° C. The emissivity of her skin is 0.85 and its surface area is 1.3 m2. How much time would it take for her to emit the ..
A race car has a mass of 718 kg. It starts from rest and travels 45.0 m in 3.0 s. The car is uniformly accelerated throughout the entire time. What net force is exerted on it.
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