Answers: 1
Physics, 22.06.2019 12:00
The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?
Answers: 3
Physics, 22.06.2019 14:30
What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?
Answers: 1
Physics, 22.06.2019 15:20
Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.
Answers: 3
Particle q1 has a charge of 2.7 μC and a velocity of 773 m/s. If it experiences a magnetic force of...
Mathematics, 25.09.2019 17:40
Biology, 25.09.2019 17:40
Mathematics, 25.09.2019 17:40
World Languages, 25.09.2019 17:40
Chemistry, 25.09.2019 17:40
History, 25.09.2019 17:40
Mathematics, 25.09.2019 17:40
Chemistry, 25.09.2019 17:40
English, 25.09.2019 17:40
Social Studies, 25.09.2019 17:40
Spanish, 25.09.2019 17:40
Social Studies, 25.09.2019 17:40
Mathematics, 25.09.2019 17:40