A proton is circling the Earth above the magnetic equator, where Earth's magnetic field is directed horizontally north and has a magnitude of 4.00 × 10^–8 T. If the proton is moving at a speed of 2.7 × 10^7 m/s, how far above the surface of the Earth is the proton? Earth's radius is 6.38 × 10^6 m, a proton's mass is 1.67 × 10^–27 kg, and its charge is 1.6 × 10^–19 C
a. 7.05E+6 m
b. 1.34E+7 m
c. 1.03E+8 m
d. 6.65E+5 m
d
You might also like to view...
Fluid Flow: In a section of horizontal pipe with a diameter of 3.0 cm, the pressure is 100 kPa and water is flowing with a speed of 1.5 m/s. The pipe narrows to 2.0 cm. What is the pressure in the narrower region? Treat the water as an ideal incompressible fluid.
A. 95 kPa B. 48 kPa C. 44 kPa D. 230 kPa E. 67 kPa
Length Contraction: Two stars are at rest relative to each other. In their common rest frame, these stars are 90.0 light-years apart. If they are measured to be 68.7 light-years apart by the navigator of a spaceship traveling between them, how fast is the spaceship moving relative to these stars?
A. 0.646c B. 0.604c C. 0.558c D. 0.505c
Referring to how many kilograms of ice can a 3-ton refrigeration unit produce in a 24-hour period? The heat of fusion of water is 330 kJ/kg.
GIVEN - A three-ton refrigeration unit - Heat of fusion of ice is 330 kJ/kg FIND (a) Kilograms of ice produced by the unit per 24 hour period (b) The refrigeration unit capacity is the net value, i.e., it includes heat losses ASSUMPTIONS (a) Water is cooled to just above the freezing point before entering the unit
Dispersing light from a hot, low-pressure gas gives a spectrum of the type known as (two words) ______________ ______________
Fill in the blank(s) with correct word