Thermal neutrons are
A)
neutrons that are hot.
B)
neutrons that are cold.
C)
neutrons with a kinetic energy of about 1/40 eV
D)
neutrons that are used for heating.
E)
neutrons that are used for cooling.
C
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A spring is stretched from its equilibrium position 10 cm when a 1 kg mass is attached to it. Removing the 1 kg mass and replacing it with a 0.50 kg mass then releasing the spring, how high will the 0.50 kg mass rise above the point where it is released?
A. 0.44 m B. 0.24 m C. 0.80 m D. 1.0 m
Fontography is the study of the appearance and arrangement of characters.
Answer the following statement true (T) or false (F)
An astronaut leaves Earth in a spaceship at a speed of 0.960c relative to an observer on Earth. The astronaut's destination is a star system 14.4 light-years away (one light-year is the distance light travels in one year)
According to the astronaut, how long does the trip take? A) 14.4 y B) 22.7 y C) 9.34 y D) 15.0 y E) 4.20 y
A charge of 1.0 × 10-6 ?C is located inside a sphere, 1.25 cm from its center. What is the electric flux through the sphere due to this charge? (?0 = 8.85 × 10-12 C2/N ? m2)
A) 0.11 N ? m2/C B) 8.9 N ? m2/C C) 0.028? N ? m2/C D) It cannot be determined without knowing the radius of the sphere.