Which is not a piece of evidence that most scientists use to prove the origin of our universe?
a. Movement of the galaxies
b. cosmic microwave background radiation
c. presence of hydrogen and helium in the correct percentages
d. The contraction of objects in space
Answers: 2
Physics, 22.06.2019 04:00
However, had it been a real sound, the sound's pitch would have been increased by the doppler effect, since the falcon was moving the source of the sound. perpendicular to away from towards at the same speed as
Answers: 1
Physics, 22.06.2019 11:20
Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.
Answers: 1
Physics, 22.06.2019 11:30
Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)
Answers: 3
Physics, 22.06.2019 12:00
For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up
Answers: 2
Which is not a piece of evidence that most scientists use to prove the origin of our universe?
a. M...
Chemistry, 15.04.2021 17:30
Mathematics, 15.04.2021 17:30
History, 15.04.2021 17:30
Chemistry, 15.04.2021 17:30
Chemistry, 15.04.2021 17:30
Mathematics, 15.04.2021 17:30
Social Studies, 15.04.2021 17:30
Mathematics, 15.04.2021 17:30
Mathematics, 15.04.2021 17:30