A particle with a charge of 4.0 ?C has a mass of 5.0 × 10-3 kg. What electric field directed upward will exactly balance the weight of the particle?
A) 4.1 × 102 N/C
B) 8.2 × 102 N/C
C) 4.4 × 104 N/C
D) 1.2 × 104 N/C
E) 5.1 × 106 N/C
D
You might also like to view...
How was the true rotation rate of Venus determined? Why does this make study of the Venusian surface hard for observers on the Earth?
What will be an ideal response?
A particle in a 453 m-long linear particle accelerator is moving at 0.875c. How long does the particle accelerator appear to the particle?
A) 219 m B) 589 m C) 104 m D) 936 m
What is the circular velocity of an object orbiting Earth at a distance of 100,000 km from Earth's center? Hint: ; G = 6.67 10^-11 m3/s2/kg
a. 0.2 m/s b. 2 m/s c. 20 m/s d. 200 m/s e. 2,000 m/s
Compared to the ocean, Earth's atmosphere is different in that
A) its density varies with depth. B) it has a less-distinct surface. C) molecules are more greatly spaced. D) all of the above E) none of the above