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A 0.267 T magnetic ?eld in a mass spectrometer causes an isotope of sodium to move in a circular path with a radius of 0.068 m. The charge on an ion is 1.60218 × 10 ?19 C. If the ions are moving with a speed of 18000 m/s, what is the isotope's mass?
Consider two unknown point charges, Q1( on the left) and Q2 are separated by a distance, o.981m. Find the ratio Q2/Q1 in both magnitude and sign
A projectile is shot horizontally at 65.3 m/s from the roof of a building 24.4 m tall. Determine the distance from the base of the building that the projectile lands
If a piece of irion (c=450 J/ kg C) at 65 C is dropped into 0.250 kg of ethyl acohol at 25 C and the final temperature of the two comes to 35 C what was the mass of the piece of iron
A photoelectric-effect experiment determines a stopping potential of 1.93 eV while light of 200 nm is used to illuminate the cathode.
Calculate the amount Stansfield should report as net cash provided (used) by financing activities in its 2010 statement of cash flows. (Enter amount as positive.)
two 1.3kg masses are 1.2m apart (center to center) on a frictionless table. Each has + 9.2?Cof charge, What is the magnitude of the electric force on one of the masses
A bead with a mass of 0.02 g and a charge of 20nC is free to slide on a vertical rod. At base of the rod is a fixed 20nC charge.
If a pipe wrench of length 18 cm is positioned vertically on pipe, with the handle pointing up, and a force of 150 N, what is the torque on the pipe
A solenoid 10.0 cm in diameter and 79.9 cm long is made from copper wire of diameter 0.100 cm, with very thin insulation. What power must be delivered to the solenoid
How many drops of water are in all the oceans on earth. Assume that 1cm^3 contains 25 drops of water.
A dc motor is connected to a constant emf of 15.6 V. The resistance of its windings is 2.0 ohms. What is the back emf induced in the windings at normal speed
An air-filled parallel-plate capacitor has a capacitance of 1.1 pF. The separation of the plates is doubled and wax is inserted between them, Find the dielectric constant of the wax
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