Strangeness is conserved observed in strong and electromagnetic interactions, but not in weak interactions
a. True
b. False
Indicate whether the statement is true or false
True
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One theory for the origin of life suggests that life was transported to Earth in meteorites. This is referred to as
A) naturism B) intelligent design C) panspermia D) chemical evolution
Increasing the spring constant k of a mass-and-spring system causes what kind of change in the resonant frequency of the system? (Assume no change in the system's mass m.)
A) The frequency increases. B) The frequency decreases. C) There is no change in the frequency. D) The frequency increases if the ratio k/m is greater than or equal to 1 and decreases if the ratio k/m is less than 1. E) The frequency increases if the ratio k/m is less than or equal to 1 and decreases if the ratio k/m is greater than 1.
Waves on a String: When a certain string is under tension T, the speed of a wave in the string is v. What will be the speed of a wave in the string if the tension is increased to 2T without changing the mass or length of the string?
A. v/2
B. v/
C. v
D. 2v
E. 4v
A heat map is an analytical tool that uses color to represent data.
Answer the following statement true (T) or false (F)