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a) What is the speed of a beam of electrons when the simultaneous influence of an electric field of 1.56×104V/m and a magnetic field of 4.62×10?3T, with both fields normal to the beam and to each other, produces no deflection of the electrons?
b) When the electric field is removed, what is the radius of the electron orbit?
c) What is the period of the orbit?
A 5.4ft -ft-tall girl stands on level ground. The sun is 30? above the horizon. How long is her shadow
Suppose the pressure in a container of soda is 15 atm. At 25oC, the Henry's Law constant for CO2 in water is 1.61 x 103 atm. Estimate the mole fraction of dissolved carbon dioxide in the soda
Explain what was observed with the horizontal motion of the man and the boat in terms of Newton's Laws of Motion.
A ball rolls horizontally off the edge of a tabletop that is 1.40 m high. What was its speed at the instant it left the table
With brakes fully applied, a 1430kg car decelerates from a speed of 74km/hr. What is the work done by the braking force in bringing car to a stop.
In one frame of reference(say H), two events occur at the same point in space, but are separated by a time interval of 100 nanoseconds
A rifle bullet is fired horizontally off the top of an ocean-based drill site. If the air resistance is negligible and the vertical distance to the water is 35 m, what additional information is needed to determine the time required for the bullet ..
Two, concentric, thin spherical shells of radii R1 = 31.3 cm and R2 = 39.1 cm are uniformly charged with a total charge Q1 = -56.5 ?C, What is the potential of the outer shell
A 168 kg polar bear standing 1.2 meters tall walks onto a floating sheet of ice 0.305 m thick. What is the surface area of the ice floe
The distance to a particular star, as measured in the earth's frame of reference, is 7.11 light years, How long does the trip take, according to observers on earth
A charge ?1.3 × 10^ ?5 C is ?xed on the x-axis at 9 m, Calculate the electric potential at the origin
Oxygen gas having a volume of 1.00 liter at 40.0 celsius and a pressure of 1.00 atmosphere expands until its volume its 1.50 liters, FInd the number of moles of oxygen
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