A string pulls horizontally on a cart so that it moves at increasing speed in positive xx-direction along a smooth, frictionless, horizontal surface. At the moment of time t1, when the cart is moving medium-fast, the magnitude of the pulling force is reduced to half its former magnitude. Use a vertical y-axis with a positive direction pointing up.
Draw a force diagram for the cart before the pulling stops.
Draw the vectors starting at the black dot. The location and orientation of the vectors will be graded. The length of the vectors will not be graded.
Answers: 3
Physics, 22.06.2019 08:00
Ms.hidalgo opens the door to her classroom. her classroom is 60 degrees and the air outside is 80. predict what will happen using your knowledge of how heat flows.
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Physics, 22.06.2019 10:30
Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?
Answers: 2
A string pulls horizontally on a cart so that it moves at increasing speed in positive xx-direction...
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