Physics, 14.11.2019 19:31 miguelc2145
Asystem consists of two particles. at t = 0 one particle is at the origin; the other, which has a mass of 0.50 kg, is on the y-axis at y = 6.0 m. at t = 0 the center of mass of the system is on the y-axis at y = 2.4 m. the velocity of the center of mass is given by (0.75 m/s3) t2i^. a)find the total mass of the system b)find the acceleration of the center of mass at any time t. c)find the net external force acting on the system at t = 3.0 s
Answers: 2
Physics, 22.06.2019 01:30
An object of dimensions 50 cm x 40 cm x 0.20 cm has a mass 60g. find its density in g/cm3 and kg/ m3
Answers: 1
Physics, 22.06.2019 05:10
Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.
Answers: 3
Physics, 22.06.2019 05:30
Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?
Answers: 1
Asystem consists of two particles. at t = 0 one particle is at the origin; the other, which has a m...
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