Physics, 13.04.2020 22:01 jdjdjdjdjjffi7273
The phases of the Moon are caused by the changing positions of the Earth and the Moon in relation to the Sun.
Which items could best be used to represent the Sun, the Earth, and the Moon in a model that shows the phases of the Moon?
A.
a candle, a soccer ball, and a mirror
B.
an orange, a grapefruit, and a lime
C.
a mirror, a fan, and some string
D.
a flashlight, a basketball, and a softball
Answers: 2
Physics, 21.06.2019 22:00
Let v1, v2, w be three linearly independent vectors in r 3 . that is, they do not all lie on the same plane. for each of the following (infinite) set of vectors, carefully sketch it in r 3 , and determine whether or not it is a vector space (i.e., a subspace of r 3 ). explain your reasoning
Answers: 2
Physics, 22.06.2019 04:30
In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.
Answers: 1
Physics, 22.06.2019 11:30
Acaterpillar tries to climb straight up a wall a meter high, but for every 2 cm up it climbs, it slides down 1 cm. eventually, it reaches the top. when it reaches the top, it does not pull itself over so it will slide down 1 cm. what is the total displacement traveled?
Answers: 3
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