Plutonium is extremely rare in natural ore deposits because it
A) is artificially created.
B) is chemically inert.
C) is a gas at room temperature.
D) has a tiny half-life compared with the age of Earth.
E) none of the above
Answer: D
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Which of the above substances would have the largest dipole?
A) a B) b C) c D) Each has the same size dipole. E) None of the molecules has a dipole.
On a winter -3.°C morning, the pressure in a car tire reads 28. psi on a pressure gauge. After several hours of highway traveling, the pressure reads 35. psi
Assuming the volume remains constant and normal atmospheric pressure of 15. psi, what is the tire temperature? A) 45°C B) 25°C C) 41°C D) 55°F E) 55°C
Resolution: What is the limiting angle of resolution for a lens of radius 2.0 mm when viewing with light having a wavelength of 600 nm?
A. 1.3 × 10-4 rad B. 1.5 × 10-4 rad C. 1.8 × 10-4 rad D. 1.5 × 10-7 rad E. 1.8 × 10-7 rad
A high-voltage transmission line carries 1 000 A at 700 kV for a distance of 200 miles. If the resistance in the wire is 1 ?/mile, what is the power loss due to resistive losses?
a. 20 kW b. 200 kW c. 20 MW d. 200 MW e. 200 W