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Suppose that an ion source in a mass spectrometer produces doubly ionized gold ions (Au2+), each with a mass of 3.27 × 10-25 kg. The ions are accelerated from rest through a potential difference of 2.00 kV. Then, a 0.750-T magnetic field causes the ions to follow a circular path. Determine the radius of the path.
A circular plastic disk of radius R, carrying a surface charge density? = ks, is rotating at constant angular velocity, Find the magnetic moment of the rotating disk
Rusting of an iron nail is an example of a change of phase, true or false? This seems like a tricky question, because it is a chemical change-but would that be considered a change of phase?
An ideal transformer has 400 turns on its primary and 18 turns on its secondary. what is the power output
A cyclist pedals a bicycle. The driving wheel accelerates from the rest to an angular speed of 6.4 rev/s in 3.8 revolutions. What is the angular acceleration of the wheel
With a particular grating a doublet of the two wavelengths 731.3 and 732.1 nm is viewed in the third order at 9.3° to the normal, find the grating spacing in nanometers
Water flows through a 1.0cm diameter pipe into a 260L bathtub, which it fills in 7mins. what is the speed of the water in the pipe
q1. two bicycle tires are set rolling with the equivalent initial speed of 5.0 ms along a long straight road and
A parallel-plate air-filled capacitor having area 51cm2and plate spacing 1.0 mm is charged to a potential differenceof 670 V. calculate the energy density between the plates
A rock is dropped into an abandoned mine, and a splash is heard 4s later. how fast the rock was falling when it hit the water
A bullet with mass m = 5.21 g is moving horizontally with a speed v = 373 m/s when it strikes a block of hardened steel with mass M = 14.8 kg, What was the change in kinetic energy (J) of the bullet
A 1300 kg cartraveling at a speed of 37.0 {\rm m}/{\rm s} skids to a halt on wet concrete where mu_k = 0.500 . How long are the skid marks
A steel wire with mass 25.5 g and length 1.16 m is strung on a bass so that the distance from the nut to the bridge is 1.10 m, Calculate the wavelength of the string's vibration
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