Physics, 10.11.2019 07:31 lilwolves1013osqd2o
You and your friends are doing physics experiments on a frozen pond that serves as a frictionless, horizontal surface. sam, with mass 73.0 kg, is given a push and slides eastward. abigail, with mass 57.0 kg, is sent sliding northward. they collide, and after the collision sam is moving at 40.0^\circ north of east with a speed of 7.00 m/s and abigail is moving at 18.0^\circ south of east with a speed of 9.40 m/s. what was the speed of each person before the collision?
a. sam's speed:
b. abigail's speed:
c. by how much did the total kinetic energy of the two people decrease during the collision?
Answers: 3
Physics, 22.06.2019 19:30
Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.
Answers: 2
Physics, 22.06.2019 20:10
Atruck with 34-in.-diameter wheels is traveling at 55 mi/h. find the angular speed of the wheels in rad/min, *hint convert miles to inches & hours to minutes:
Answers: 2
Physics, 22.06.2019 21:50
Determine the moment of the force f about an axis extending between a and c. express the result as a cartesian vector. a is at the origin, c is at (4,3,0) and f = (4i + 12j -3k) lb coming out of b (4,3,-2).
Answers: 2
You and your friends are doing physics experiments on a frozen pond that serves as a frictionless, h...
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