Physics, 18.06.2020 18:57 naomicervero
The next few questions refer to the Golden Great Bridge, built on planet Tehar in a galaxy far, far away. The bridge-building technology on Tehar is not very well developed: The bridge is just a long slab of pure gold with the opposite ends resting on the shores of the river. In the spring, when the air temperature is 100 Celsius, the length of the bridge is 160.0m . Answer the questions below knowing that the value theta of for gold is 1.42 x 10 ^-5 degrees Celsius ^-1. Compared to its length in the spring, by what amount delta L winter does the length of the bridge decrease during the Teharian winter when the temperature hovers around -150 Celsius? and Compared to its length in the spring, by what amount delta L summer does the length of the bridge increase during the Teharian summer when the temperature hovers around 700 Celsius? An equation given is L-L1=theta*L1(T-T1)
Answers: 2
Physics, 22.06.2019 12:30
Urgent pls a. coal consumption levels off and remains flat. b. petroleum, natural gas, and renewables show an increase in consumption c. more nonrenewable resources continued to be consumed than renewable. d. there is little projected increase in nuclear energy use. e. carbon dioxide emissions are projected to decline as we approach 2040. global energy consumption is defined as the total energy used by an individual or organizations from around the world. use the graph above to analyze the projected energy consumption from now until 2040. which statements in the prompt apply? a) a, b, d b) b, c, d c) a, c, d d) a, b, c, d
Answers: 1
Physics, 22.06.2019 15:40
If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.
Answers: 1
Physics, 22.06.2019 16:40
Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".
Answers: 3
The next few questions refer to the Golden Great Bridge, built on planet Tehar in a galaxy far, far...
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