The force on a charged particle created by its motion in a magnetic field is maximum at what angle between the particle velocity and field?
a. 90°
c. zero
b. 180°
d. 45°
A
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A block of ice slides down a ramp. For which height and base is the acceleration the greatest?
A. Height 4 cm Base 12 Cm B. Height 3 cm base 6 cm C. Height 2 cm Base 5 cm D. height 1m base 3
Charge of a uniform density (8.0 nC/m2) is distributed over the entire xy plane. A charge of uniform density (3.0 nC/m2) is distributed over the parallel plane defined by z = 2.0 m. Determine the magnitude of the electric field for any point with z = 3.0 m
a. 0.79 kN/C b. 0.17 kN/C c. 0.62 kN/C d. 0.34 kN/C e. 0.28 kN/C
The speed of FM waves will be observed to be c = 2.9979 × 10^8 m/s when the antenna emitting the waves is
a. at rest relative to the receiving antenna. b. moving to the right of the detecting antenna at 0.5 c. c. moving to the left of the detecting antenna at 0.5 c. d. moving as described in (a), (b) or (c) above. e. moving at 2.9979 × 10^8 m/s.
What is the acceleration of gravity at the surface of Earth?
A) 9.8 m2/s downward B) 9.8 m/s downward C) 9.8 km/s2 downward D) 9.8 m/s2 downward E) 9.8 km/s downward