Physics, 11.03.2020 23:35 heintzelmanvp6ir6d
A roller-coaster car has a mass of 1070 kg when fully loaded with passengers. As the car passes over the top of a circular hill of radius 22 m, its speed is not changing. (a) At the top of the hill, what is the normal force (using the negative sign for the downward direction) FN on the car from the track if the car's speed is v = 8.4 m/s? (b) What is FN if v = 19 m/s? Use g=9.81 m/s2.
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Physics, 22.06.2019 17:30
Four point charges each having charge q are located at the corners of a square having sides of length a. find symbolic expressions for the following. (a) the total electric potential at the center of the square due to the four charges (use any variable or symbol stated above along with the following as necessary: ke.) vtotal= (b) the work required to bring a fifth charge p from infinity to the center of the square (use any variable or symbol stated above along with the following as necessary: w=
Answers: 2
Physics, 22.06.2019 18:00
Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?
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Physics, 23.06.2019 01:40
When you see distant streetlights through smog, they look dimmer and redder than they do normally. but when you see the same streetlights through fog or falling snow, they look dimmer but not redder. use your knowledge of the interstellar medium to discuss the relative sizes of the particles in smog, fog, and snowstorms compared to the wavelength of light.
Answers: 3
A roller-coaster car has a mass of 1070 kg when fully loaded with passengers. As the car passes over...
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