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The potential in cylindrical coordinates is given as V(r,φ)= (100/r)sin(3φ). Find
i. Where is the location of zero voltage?ii. Find electric field intensity for all points.
a little girl and her father are both playing on a merry go round in the park. what is the average angular velocity of the father
A girl was walking along the street. In the first 7 minutes she walked eastward for 692 m. Then she found out she lost her purse and went back. Calculate her average speed in this process
A 3.30-g copper coin at 21.0°C drops 45.0 m to the ground. (Assume the specific heat of copper is 387 J/kg · °C.) determine the coin's final temperature
A small camera has a lens with focal length f=15 mm has a movable lens that can be focused on objects as close as 20 cm or as far away as infinity (relative to f). What is the optimum lens-film distance
A Charge of Q=700nC is uniformly distributed throughout a circular disk of radius R =10 cm, What are the magnitued and direction of the electric and magnetic field at the center of the rotating charge
A block of mass m = 0.80 kg slides along a horizontal table with speed v0 = 5.50 m/s. At x = 0 it hits a spring with spring constant k = 45.00 N/m and it also begins to experience a friction force. The coefficient of friction is given by ? = 0.250. H..
When a battery is connected to the plates of a 9.00-µF capacitor, it stores a charge of 216.0 µC. What is the voltage of the battery
A collision between two protons produces three new particles: p + p --->p + + + 0 + 0. The rest energies of the new particles are + (139.6 MeV), 0 (1116 MeV), 0 (497.7 MeV). Note that one proton disappears during the reaction. How much of the protons..
A quarter, having a radius of 1 cm. and a thickness of 1.3 mm., is placed in a uniform E field of 6300 N./C. What is the net positive charge on one of the faces of the coin
A variable force, given by the analytical expression F = 3x2 with x in meters, acts on an object, changing only the kinetic energy of the object. Assume the particle starts out at x=0. a) Make a sketch of the force acting on the object as a function ..
How fast is the top of the tree moving (in m/s) just before it hits the ground? Model the tree as straight, rigid rod, and ignore friction and air resistance.
A laser beam is incident on two slits with a separation of 0.210 mm, and a screen is placed 5.30 m from the slits. what is the wavelength of the laser light
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