Physics, 28.08.2019 14:00 ciaotaylor
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: 2
Physics, 22.06.2019 18:00
Wind and moving water provide energy. question 1 options: chemical mechanical thermal none of the above
Answers: 1
Physics, 22.06.2019 18:30
Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?
Answers: 1
Physics, 23.06.2019 02:00
Estimate the kinetic energy of mars with respect to the sun as the sum of two terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. (assume mars is a uniform sphere with mass = 6.4×10 to the power of 23 kg, radius = 3.4×10 to the power of 6 m, rotation period = 24.7 hours, orbital period = 686 days and is 2.3×10 to the power of 8 km from the sun.)
Answers: 2
Physics, 23.06.2019 05:00
Definition: this is the weighted average of all of the isotopes of an element.
Answers: 1
Which sentences describe disadvantages of burning fossil fuels instead of using hydrogen fuel cells?...
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