One half of a balanced chemical equation is shown. 3Mg(OH)2 + 2H3PO4
Which lists the numbers of each atom the other half of the equation would contain?
0 3 Mg, 2P, 140, 12 H
0 Mg, 2 P, 140, 6 H
3 Mg, 8 P, 70, 6 H
O 6 Mg, 6 P, 20, 12 H

At time t=0, a particle is located at the point (3,6,9). it travels in a straight line to the point (5,2,7), has speed 8 at (3,6,9) and constant acceleration 2i−4j−2k. find an equation for the position vector of the particle.

One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final