Physics, 20.09.2019 23:30 zhjzjzzj6325
Write down an equation describing a sinusoidal traveling wave (in 1-d). tell us (words and/or equations) what in your equation tells us the speed and direction of the wave? [hint: you can google this if you do not know the answer. be sure you understand it though! ]
Answers: 2
Physics, 21.06.2019 17:20
You have been called to testify as an expert witness in a trial involving a head-on collision. car a weighs 1515 lb and was traveling eastward. car b weighs 1125 lb and was traveling westward at 44.0 mph. the cars locked bumpers and slid eastward with their wheels locked for 22.5 ft before stopping. you have measured the coefficient of kinetic friction between the tires and the pavement to be 0.750 . how fast (in miles per hour) was car a traveling just before the collision? (this problem uses english units because they would be used in a u.s. legal proceeding.)
Answers: 3
Physics, 22.06.2019 04:00
When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative
Answers: 2
Physics, 22.06.2019 05:20
A3.9 g aluminum foil ball with a charge of +4.1Ć10ā9 c is suspended on a string in a uniform horizontal eā field. the string deviates to the right and makes an angle of 30ā with the vertical. part a part complete what information about the eā field can you determine for this situation? what information about the field can you determine for this situation? only the magnitude of eā only the direction of eā both the magnitude and the direction of eā none of the above previous answers correct part b determine the magnitude of the electric field. express your answer with the appropriate units. e e = nothing nothing request answer part c determine the direction of the electric field. determine the direction of the electric field. to the right to the left away from you toward you
Answers: 3
Physics, 22.06.2019 16:30
Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?
Answers: 2
Write down an equation describing a sinusoidal traveling wave (in 1-d). tell us (words and/or equati...
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