You place a book on top of a spring and push down, compressing the spring
by 10 cm. When you l...
Physics, 05.05.2020 09:30 lkarroum3733
You place a book on top of a spring and push down, compressing the spring
by 10 cm. When you let go of the book, it is pushed up by the spring. Which
statement describes what happens to the energy of the spring-book system?
A The kinetic energy of the system decreases
B. The total energy of the system increases
c The gravitational potential energy of the system increases
D
The elastic potential energy of the system increases.
Answers: 2
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The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).
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Decreased sensitivity to an unchanging stimulus is known as
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