Three dimensions. three point particles are fixed in place in an xyz coordinate system. particlea, at the origin, has massma. particleb, at xyz coordinates (2.00d, 1.00d,2.00d), has mass 2.00ma, and particle c, at coordinates (-1.00d, 2.00d, -3.00d), has mass 3.00mn. a fourth particled, with mass 4.00ma, is to be placed near the other particles. in terms of distance d, at what (a) x, (b) y, and (b) z coordinate should d be placed so that the net gravitational force on a from b, c, andd is zero?

A15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°c to 175°c. what is the specific heat capacity of iron?

The text compares alternating current with direct current. how are they different? a alternating current reverses direction in the electrical wiring. direct current flows in one direction only. b direct current reverses direction in the electrical wiring. alternating current flows in one direction only. c direct current is powered by solar energy. alternating current is powered by electrical energy. d alternating current does not move in the electrical wiring. direct current does move in the electrical wiring.

A40 kilogram skier starts at the top of a 12 meter heigh slope. at the bottom she is traveling 10 meters per second how much does she lose to friction? a. 4,704 joules b. 2,704 joules. c.2,000 joules d. she doesn’t lose any because mechanical energy is conserved. 35