A deuteron is accelerated from rest through a 10-kV potential difference and then moves perpendicularly to a uniform magnetic field with B = 1.6 T. What is the radius of the resulting circular path? (deuteron: m = 3.3 × 10^?27 kg, q = 1.6 × 10^?19 C)
a. 19 mm
b. 13 mm
c. 20 mm
d. 10 mm
e. 9.0 mm
b
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Reducing the lens aperture size is a scheme one can use to reduce the occurrence of which of the following effects?
a. spherical aberration b. mirages c. chromatic aberration d. light scattering
How many turns should a 10-cm long ideal solenoid have if it is to generate a 1.5-mT magnetic field when 1.0 A of current runs through it? (?0 = 4? × 10-7 T ? m/
A) A) 12 B) 15 C) 120 D) 1200 E) 3200
2.00 moles of an ideal gas with a volume of 4.00 liters and a temperature of 0
is mixed with 1.00 mole of an ideal gas with a volume of 3.00 liters and a temperature of 100
The volume of the mixture is 5.00 liters. What is the N/V of the mixture?
a. 
b. 
c. 
d. 
e. 
The instruction manual for a hot-wire anemometer states that ‘roughly speaking, the current varies as the one-fourth power of the average velocity at a fixed wire resistance’. Check this statement, using the heat transfer characteristics of thin wire in air and water.
GIVEN • A thin current carrying wire in an air or water stream FIND • Show that the current (I) varies as the one-fourth power of the fluid velocity (V?) at a fixed resistance (ReI) ASSUMPTIONS • Radiative heat transfer is negligible