Physics, 14.12.2019 03:31 michaelmontoya64
Aflat sheet of ice has a thickness of 1.4 cm. it is on top of a flat sheet of crown glass that has a thickness of 3.0 cm. light strikes the ice perpendicularly and travels through it and then through the crown glass. in the time it takes the light to travel through the two sheets, how far would it have traveled in a vacuum?
Answers: 1
Physics, 21.06.2019 19:30, Esmer1030
Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?
Answers: 3
Physics, 21.06.2019 20:00, aa985960
Which sentences describe disadvantages of burning fossil fuels instead of using hydrogen fuel cells? burning fossil fuels contributes to climate change. burning fossil fuels takes place inside expensive fuel cells. fossil fuels aren't widely available, but pure hydrogen is. fossil fuels are nonrenewable.
Answers: 1
Physics, 22.06.2019 02:10, allytrujillo20oy0dib
How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by
Answers: 2
Aflat sheet of ice has a thickness of 1.4 cm. it is on top of a flat sheet of crown glass that has a...
Mathematics, 29.04.2021 21:20
Mathematics, 29.04.2021 21:20
Mathematics, 29.04.2021 21:20