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A singly charged ion of mass m is accelerated from rest by a potential difference ?V. It is then deflected by a uniform magnetic field (perpendicular to the ion's velocity) into a semicircle of radius R. Now a doubly charged ion of mass m' is accelerated through the same potential difference and deflected by the same magnetic field into a semicircle of radius R' = 6R. What is the ratio of the masses of the ions?
A radar unit sends out 0.05 microsecond pulses of microwaves whose wavelength is 25 mm. What is the frequency of these microwaves
Eight identical light bulbs are connected in parallel with a 120-V power source, by two long leads with resistance 1.4 Ohms. 210 mA flow through each bulb, What is the resistance of each bulb
q1. megans mass is 27 kg. she climbs the 4.8 m ladder of a slide and reaches a velocity of 3.6 ms at the bottom of the
03.3 A boat is heading upstream when a float is dropped overboard and carried downstream. What is the boat's speed in still water?
A thing, rigid, spherical shell with a mass of 4.00 kg and diameter of 0.200 m is filled with helium at 0 degrees celsius and 1 atm pressure. It is after that free from rest on the bottom of a pool of water that is 4.00 m deep.
a child makes a ramp to push his toy dump truck up to his sand box.If he uses 5 newtons of force to push his 12 newton truck up the ramp
After falling from rest from a height of 29 m, a 0.49-kg ball rebounds upward, reaching a height of 19 m. find average force was exerted on the ball
A man driving a car toward a large vertical wall sounds his horn. The car is traveling at 92 km/h. What is the frequency of the car horn
An ideal monatomic gas expands isothermally from 0.600 m3 to 1.25 m3 at a constant temperature of 600 K. If the initial pressure is 1.10 105 Pa. Find the work done on the gas
A magnetic field is oriented at an angle of 39 to the normal of a rectangular area 4.8cm by 7.7cm If the magnetic flux through this surface has a magnitude of 4.6×10-5 T-m2 ,
A typical flashlight battery will produce a 0.50-A current for about 3 h before losing its charge. Determine the total number of electrons
q1. a rock of mass m 1.7 kg is tied to a string of length l 1.6 m and is twirled in a vertical circle. the speed v of
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