1)what causes the angle of the sun’s rays to change during the year on earth? 2)if you live in the southern hemisphere, during which months does autumn occur? 3)what is the difference between rotation and revolution? 4)season’s are caused by earth’s which of these occurs during a solar eclipse? 5)during the month of may, in the northern hemisphere, the where would you be on the surface of the earth is you were in complete darkness for twenty-four hours on december 21? 6)the gradual change in the length of your shadow over the course of the day is caused 7)which of the following occurs when the sun is directly above earth’s equator? in the northern hemisphere, the longest day occurs on
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Physics, 22.06.2019 10:40, rainbowboi
As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.
Answers: 1
Physics, 22.06.2019 20:00, luceridiaaz
What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?
Answers: 1
1)what causes the angle of the sun’s rays to change during the year on earth? 2)if you live in the...
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