In each of the following situations, point charge q moves in a uniform magnetic field B. The strength of the magnetic field is indicated by the density of field lines. In each situation, the initial speed v of the charge is the same. For which situation(s) will the charge q have the largest displacement in a certain time T?
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Car A is traveling at 22.0 m/s and car B at 29.0 m/s. Car A is 300 m behind car B when the driver of car A accelerates his car with a uniform forward acceleration of 2.40 m/s2
How long after car A begins to accelerate does it take car A to overtake car B? A) 12.6 s B) 316 s C) 5.50 s D) 19.0 s E) Car A never overtakes car B.
The torque due to the frictional resistance of the oil film between a rotating shaft and its bearing is found to be dependent on the force F normal to the shaft, the speed of rotation N of the shaft, the dynamic viscosity ? of the oil, and the shaft diameter D. Establish a correlation among the variables by using dimensional analysis.
GIVEN The oil film between a rotating shaft and its bearing The torque (T) due to frictional resistance is a function of normal force (F), speed of rotation (N), dynamic viscosity (?), and shaft diameter (D) FIND A correlation among the variables ASSUMPTIONS Steady state
The ________ blows out of the coronal holes
Fill in the blank(s) with correct word
At the equator during the equinoxes on Uranus a day lasts:
A) 7 hours. B) 8 hours. C) 21 years. D) 42 years. E) 84 years.