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A beam of protons is accelerated through a potential difference of 0.725 kV and then enters a uniform magnetic field traveling perpendicular to the field.
A) Find what magnitude of field is needed to bend these protons in a circular arc of diameter 1.72 meter?
B) Find what magnetic field would be needed to produce a path with the same diameter if the particles were electrons having the same speed as the protons?
A spaceship travels past an observer at a speed of 0.6c. What time would the observer record for the same event
Lenses
A woman stands 2.0 m in front of a convex mirror and notices that her image height is 1/4 of her actual height. Determine the radius of curvature of the mirror
The work function of an element is 2.2 eV. Photons of a certain energy are found to eject electrons with a kinetic energy of 3 eV. What is the speed of the ejected electrons
Around the star Kepler-11 (mass 0.95 solar masses), there are orbiting six planets, at i) 0.0911, ii) 0.107, iii) 0.1542, iv) 0.1939, v) 0.2495, and vi) 0.464 AU. How large is the Hill sphere for planet (i) if you consider the star-planet system?
Identical point charges of +2.6 µC are fixed tothree of the four corners of a square. What is themagnitude q of thenegative point charge that must be fixed to the fourth corner, so that the charge at the diagonally opposite corner experiences a netfo..
A 12.6 g CD with a radius of 6.16 cm rotates with an angular speed of 31.3 rad/s. What is its kinetic energy, What angular speed must the CD have
If a beam of gamma rays with an initial intensity of Io passes through an absorber in which the mean free path lambda = 2.6 mm
A 1.0 N force is applied to the plunger of a hypodermic needle. The diameter of the plunger is 1.0 cm and that of the needle is 0.30 mm. With what force does the fluid leave the needle?
A 555.0 g/hr stream of liquid methyl alcohol, also called methanol, (CH3OH) at 7.20 atm, At what rate must heat be supplied to this system
Kim says that she was less than 10 ft away from the president when she took a picture of him with her 53-mm focal length camera lens. How close was Kim to the president when she took the picture
A 2.00×10^4 kg railroad car is rolling at 4.00m/s when a 5000kg load of gravel is suddenly dropped in. What is the car's speed just after the gravel is loaded
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