Physics, 15.10.2019 21:00 knight5910
Two automobiles, each of mass 1000 kg, are moving at the same speed, 20 m/s, when they collide and stick together. in what direction and at what speed does the wreckage move a) if one car was driving north and one south and b)if one car was driving north and one east?
Answers: 1
Physics, 21.06.2019 23:30
A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?
Answers: 3
Physics, 22.06.2019 02:00
How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?
Answers: 3
Physics, 22.06.2019 02:30
Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference
Answers: 1
Physics, 22.06.2019 03:50
Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.
Answers: 1
Two automobiles, each of mass 1000 kg, are moving at the same speed, 20 m/s, when they collide and s...
Chemistry, 19.10.2020 16:01
Mathematics, 19.10.2020 16:01
English, 19.10.2020 16:01
Mathematics, 19.10.2020 16:01
English, 19.10.2020 16:01
English, 19.10.2020 16:01
History, 19.10.2020 16:01