Physics, 20.09.2021 02:30, dmoore6859
A shunting engine in a rail yard is working on a straight east-west section of line. First it travels west for 150 s with an average velocity of 4 m/s, to hook up to 10 empty freight cars. Then it pulls the cars east with an average velocity of 3 m/s for 200 s, to a loading area. Calculate the engine's final displacement.
Answers: 2
Physics, 22.06.2019 12:50, stephanie37766
Which changes would result in a decrease in the gravitational force btween two objects? check all that apply
Answers: 1
Physics, 22.06.2019 17:30, madisonnewby5021
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 18:40, meganwintergirl
Which body is in equilibrium? (1) a satellite orbiting earth in a circular orbit (2) a ball falling freely toward the surface of earth (3) a car moving with a constant speed along a straight, level road (4) a projectile at the highest point in its trajectory
Answers: 2
A shunting engine in a rail yard is working on a straight east-west section of line. First it travel...
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