Physics, 29.09.2019 09:30 haylonder9439
If a star is 50 light-years away from earth, how long will it take light to travel from star to earth?
Answers: 1
Physics, 22.06.2019 04:00
What is the scientific definition of energy that relates to work
Answers: 1
Physics, 22.06.2019 17:00
The chart shows the costs and shipping times for materials that a company needs to build a new product. which describes the best trade-off if the company needs to start building their product within the next two years? they should order the domestic materials because it is always best to choose the fastest shipping time. they should order the imported materials because it is always best to choose the lowest cost for materials. since the shipping time is longer, they should order the domestic materials because the additional cost is worth it to get the materials in time. even though the shipping time is longer, they should order the imported materials because they are less expensive and should arrive in plenty of time to build the product.
Answers: 1
Physics, 22.06.2019 17:40
The first-order reaction aā2b+c has rate constant 0.538 sā1. if the initial concentration of a is 0.867 mol lā1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.
Answers: 3
Physics, 23.06.2019 06:30
Pl i beg u so much now propane burns in oxygen to produce carbon dioxide and steam. the unbalanced equation for this reaction is: c3h8 + o2 ā co2 + h2o use coefficients to balance this equation. a) c3h8 + 3 o2 ā 3 co2 + 4 h2o b) c3h8 + o2 ā 3 co2 + 4 h2o c) c3h8 + 5 o2 ā 3 co2 + 4 h2o d) 2 c3h8 + 5 o2 ā 3 co2 + 4 h2o
Answers: 1
If a star is 50 light-years away from earth, how long will it take light to travel from star to eart...
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