Two dogs are pulling on opposite ends of a bone, each with a force of 150N, in opposite directions along the length of the bone. What is the tension in the bone?
A. 0N
B. 150N
C. 300N
D. More information is needed to answer this question.
B. 150N
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A parallel plate capacitor with an air dielectric is attached to a voltage source and charged. The voltage source is removed, and then the plates are separated to double their previous distance. What happens to the energy stored by the capacitor when the plates are separated?
A. it doubles B. it quadruples C. it halves D. it is diminished by a factor of 4 E. it stays the same
What are some sources of the shock waves that initiate star formation?
What will be an ideal response?
Carbon-14 is produced in the atmosphere principally by
A) plants and animals. B) cosmic-ray bombardment. C) nitrogen bombardment. D) photosynthesis. E) none of the above
Blue light has a longer wavelength than red light
a. True b. False Indicate whether the statement is true or false