An X-ray technician takes an average of ten X-rays per day and receives 2.5 mrad per X-ray. What is the total dose the technician receives in 250 working days?
A)
2.50 rem
B)
5.00 rem
C)
6.25 rem
D)
7.75 rem
E)
12.5 rem
C
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The Sun will eventually become a supernova
a. True b. False Indicate whether the statement is true or false
Faraday's Law: A round flat metal coil has 180 turns and negligible resistance. It is connected in a series circuit with a 17-? resistor, with nothing else in the circuit. You measure that a 6.0-A current flows through the resistor when a magnetic field through the coil, perpendicular to its area, is changing at 3.0 T/s. What is the radius of the coil?
A. 0.25 m B. 0.014 m C. 0.54 m D. 0.043 m
The time before the Phanerozoic eon is collectively called ______________ time
Fill in the blank(s) with correct word
A rod (length = 10 cm) moves on two horizontal frictionless conducting rails, as shown. The magnetic field in the region is directed perpendicularly to the plane of the rails and is uniform and constant. If a constant force of 0.60 N moves the bar at a constant velocity of 2.0 m/s, what is the current through the 12-? load resistor?
a.
0.32 A
b.
0.34 A
c.
0.37 A
d.
0.39 A
e.
0.43 A