Physics, 12.06.2020 02:57, magaaalimartinez
1. In 214 BC, Archimedes invented a large spherical-type mirror used to focus the sun's intense rays onto far away enemy boats, which would eventually light them on fire. If the boats were travelling in a nearby channel approximately 1,000 m from the river bank, what would the radius of curvature of his mirror need to be? Show your work.
Answers: 1
Physics, 21.06.2019 23:20, lailabirdiemae
Initially, a particle is moving at 5.33 m/s at an angle of 37.9Β° above the horizontal. two seconds later, its velocity is 6.11 m/s at an angle of 54.2Β° below the horizontal. what was the particle's average acceleration during these 2.00 seconds in the x-direction (enter first) and the y-direction?
Answers: 1
Physics, 22.06.2019 12:30, spenceraniyah1
An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5Γ103 j and the energy transferred thermally out is 99.4Γ103 j. there are 1.5Γ1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1β2 b. 2β3 c. 4β1 d. 1β2 and 4β1 e. none of the above
Answers: 3
1. In 214 BC, Archimedes invented a large spherical-type mirror used to focus the sun's intense rays...
Computers and Technology, 18.07.2019 01:30