Physics, 07.01.2021 14:00 samueltaye
An early major objection to the idea that the earth rotates on its axis was that it would have
to turn so fast that people would be thrown off into space. Show the error in this logic by
calculating:
a. the speed of a 100 kg person standing at the equator. (The radius of the earth is
about 6400 km).
b. the net force necessary to keep the person in this motion.
c. how the normal force acting on the person compares to their weight.
d. From your answers to these questions, explain why people do not fly off into
space. What would happen to the size of the normal force if the earth spun faster?
Answers: 3
Physics, 21.06.2019 22:20
The place you get your hair cut has two nearly parallel mirrors 6.00 m apart. as you sit in the chair, your head is 2.00 m from the nearer mirror. looking toward this mirror, you first see your face and then, farther away, the back of your head. (the mirrors need to be slightly nonparallel for you to be able to see the back of your head, but you can treat them as parallel in this problem.) how far away does the back of your head appear to be?
Answers: 2
Physics, 22.06.2019 16:00
The discovery of the electron as a subatomic particle was a result of
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Physics, 22.06.2019 18:30
Against his financial advisor's advice, frank has decided to invest his money in some risky stocks because he once made quite a bit of money in the stock market. his decision illustrates a. the representativeness heuristic b. overconfidence c. the availability heuristic d. confirmation bias select the best answer from the choices provided
Answers: 3
Physics, 23.06.2019 02:00
Provides most of the energy used in the world today. question 4 options: wind fossil fuel moving water sunlight
Answers: 1
An early major objection to the idea that the earth rotates on its axis was that it would have
to t...
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