A train is 240 meters long and travels 20 m/s. How long does
it take to cross a 360-meter long...
Answers: 2
Physics, 22.06.2019 14:00
Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.
Answers: 1
Physics, 23.06.2019 02:30
Aprotein molecule in an electrophoresis gel has a negative charge.the exact charge depends on the ph of the solution, but 30 excesselectrons is typical. what is the magnitude of the electric forceon a protein with this charge in a 1500 n/c electric field?
Answers: 3
Physics, 23.06.2019 10:10
Human population projections are subject to change due to fluctuations in global fertility and mortality rates
Answers: 1
Physics, 23.06.2019 20:00
An olympic runner leaps over a hurdle. the acceleration of gravity is 9.81 m/s2 . if the runner’s initial vertical speed is 2.0 m/s, how much will the runner’s center of mass be raised during the jump?
Answers: 1
History, 30.01.2020 19:00
Physics, 30.01.2020 19:00
Mathematics, 30.01.2020 19:00
Mathematics, 30.01.2020 19:00
Mathematics, 30.01.2020 19:00
Biology, 30.01.2020 19:00
Mathematics, 30.01.2020 19:00
Social Studies, 30.01.2020 19:00