A fountain sends water to a height of 100 meters. What must be the pressurization (above atmospheric) of the water system? 1 ATM = 1.01 × 10^5 N/m2
a. 1.0 ATM
b. 4.2 ATM
c. 7.2 ATM
d. 9.7 ATM
e. 8.2 ATM
D
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A charge of 50 nC is uniformly distributed along the y axis from y = 3.0 m to y = 5.0 m. What is the magnitude of the electric field at the origin?
A. 18 N/C B. 50 N/C C. 30 N/C D. 15 N/C E. 90 N/C
A horizontally-projected beam of electrons travelling at 55 km/s travels between two parallel plates separated by 7.4 cm, and 12 cm long, between which there is an electric field of 7.2 mV/m upward. If the beam enters the region at a height of 3.7 cm above the lower plate, at what height above the lower plate is the beam when it exits? The electron mass is 
A. 0.9 cm B. 2.3 cm C. 5.1 cm D. 4.6 cm
A "blown" fuse has
A) moderate resistance. B) zero resistance. C) infinite (very large) resistance.
A 4.0-?C charge is situated at the origin of an xy-coordinate system. What is the potential difference between a point x = 4.0 m and y = -4.0 m because of this charge?
A) 18 × 103 V B) -18 × 103 V C) 0 V D) 36 × 103 V E) -36 × 103 V