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1. What is the wavelength (in 10-15 m) of a proton traveling at 19.8% of the speed of light?
(Mp = 938.27 MeV/c2 = 1.6726 10-27 kg , c = 3 108 m/s)
2. Determine the direction of the force (if any) that will act on the charge in each of the following situations.
A positive charge within an electric field that points to the left.A negative charge within an electric field that points upward.A positive charge moving into the screen in a magnetic field that points upward.A negative charge moving to the left in a magnetic field that points into the screen.A positive charge moving upward in an electric field that points out of the screen.A positive charge moving downward in a magnetic field that points upward.
4. Two charged spheres are 16.0 cm apart. They are moved, and the force on each of them is found to have been quadrupled. How far apart are they now?____cm
Work in CGS units.
5. A capacitor with capacitance C1 is charged by connecting its terminals to a battery at voltage V1. With the battery still connected, a dielectric substance with dielectric constant c is inserted.
a) By how much is the charge on the capacitor charged when dielectric is inserted.b) Compare the energy stored in the capacitor before and after insertion.c) How much work is done by the battery.
What is the minimum frequency of light needed to free an electron from a neon nucleus when the electron is in its lowest energy level n=1
High-intensity desk lamps are rated at 30 W but require only 13 V. They contain a transformer that converts 125 V household voltage. What is the current in the secondary when the lamp is on?
A car traveling at 30 m/s runs out of gas while traveling up a 20° slope. How far up the hill will it coast before starting to roll back down
A horizontal pipe of diameter 120 mm has a constriction of diameter40 mm. The velocity of water in the pipe is 60 m/s and the pressureis 150 kPa. What is the pressure in the constriction
The electric potential energy stored in the capacitor of a defibrillator is 58 J, What is the potential difference across the capacitor plates?
If the charge of the point charge in the figure were -2Q (instead of +Q), by what factor would the magnitude of the force on the point charge due to the dipole change.
A uniform thin rod of length L=2.5 m and mass 2 kg can rotate in a horizontal plane about a vertical axis through its center. The rod is at rest when a 0.3 kg ball of putty, moving in the horizontal plane of the rod, hits and sticks to one end. As..
A isolated conducting sphere R=3.0 cm has a charge placed on itssurface. The surface charge density is uniform and has the value-7.2x10^(-6) C/m^2.(1) Find the total charge on the sphere, (2) themagnitude and direction of the electric field at r=R.(3..
A Carnot engine operates with a cold reservoir temperature of 194 K and has an efficiency of 74.3%. (a) What is the temperature of the hot reservoir? (b) If the engine does 8.99×10 J of net work during each cycle,
The distance among the eyepiece and the objective lens in a certain compound microscope is 24.0 cm. The focal length of the objective is 0.460cm, and that of the eyepiece is 2.00 cm. Discover the overall magnification of the microscope.
A person stands on the edge of a cliff. She throws three identical rocks with the same speed. Rock X is thrown vertically upward, rock Y is thrown horizontally, which rock hits the ground with the highest speed
A +5.0-microC charge experiences a 0.46-N force in the positive y direction. If this charge is replaced with a charge-2.7-microC, find the magnitude of the force in this case.
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