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A uniform disk of radius 0.471 m and unknown mass is constrained to rotate about a perpendicular axis through its center. A ring with same mass as the disk\'s is attached around the disk\'s rim. A tangential force of 0.241 N applied at the rim causes an angular acceleration of 0.107 rad/s2. Find the mass of the disk.
A tungsten target is struck by electrons that have been accelerated from rest through a 20.0-kV potential difference
A car changes it speed from rest to 12 km/hr in 4sec .If the mass of the car is 2000 killograms what is the net force acting on the car
An airplane pilot wishes to fly due west. A wind of 88.0 km/h is blowing toward the south. What is the speed of plane over the ground in km/h.
Briefly describe: (a) Charging by friction (b) Charging by contact (c) Charging by induction *In one sentence if possible.
The potential at the center of a uniformly charged ring is 52 kV, and 15 cm together the ring axis the potential is 41 kV. Find the ring's radius and its total charge.
An angry rhino with a mass of 2300 kg charges directly toward you with a speed of 4.30 m/s. Determine the speed of the ball after it bounces back elastically toward you
A particular nucleus of the element plutonium contains 94 protons and 150 neutrons. What is the magnitude of the force from the nucleus on a single electron that is at a distance of 0.563 × 10-12 m from the plutonium nucleus.
A semicircle of radius a is in the first and second quadrants, What is the direction of the net electric field at the origin produced by this distribution of charge (+x,-x,+y,-y direction)
A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 5.47 m/s. The car is a distance d away, What is the maximum possible value for d
A narrow beam of sodium yellow light with wavelength 589 nm in vacuum, Determine the wavelength of the light in water
A cylindrical capacitor has an inner conductor with a radius of 2.1mm and an outer conductor with a radius of 3.1mm. Find the charge (magnitude and sign) on both conductors
An electron, starting from rest, accelerates through a potential difference of 779 V. What is the final de Broglie wavelength of the electron
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