Physics, 29.06.2019 11:40 littledudefromacross
Fuel cells have been developed that can generate a large amount of energy. for example, a hydrogen fuel cell works by combining hydrogen and oxygen gas to produce water and electrical energy. if a fuel cell can generate 10.0 kilowatts of power and the current is 15.8 amps, what is the voltage of the electricity? a. 0.63 volts b. 158volts c. 633 volts d. 158,000 volts e. 5.8 volts
Answers: 2
Physics, 22.06.2019 22:30, steven12372
Which is a substance that can be separated by physical means and is not the same throughout
Answers: 2
Physics, 23.06.2019 08:00, bakerj5203
Diego is trying to lift a piano to the second floor of his house. diego uses a pulley system and gives a big lift to the piano. the piano moves upward, then stops, and then it starts to fall to the ground. which list best describes the forces on the piano in the proper order? a. positive force, balanced force, negative force b. negative force, balanced force, positive force c. positive force, unbalanced force, negative force d. negative force, unbalanced force, positive force
Answers: 1
Physics, 23.06.2019 18:00, ncosmebaez15
Asample of the mineral calcite has a volume of 15 cm³ and a mass of 40.5 g. what is the density of the calcite? a. 0.37 g/cm³ b. 2.7 g/cm³ c. 55.5 g/cm³ d. 607.5 g/cm³
Answers: 1
Physics, 23.06.2019 22:30, acaciacoats
Aspring is originally 0.4m. when a 23n force is applied it stretches to a total of 0.7m. how far is the spring been extended? what is the spring constant of the spring?
Answers: 1
Fuel cells have been developed that can generate a large amount of energy. for example, a hydrogen f...
Biology, 04.02.2021 21:50
Mathematics, 04.02.2021 21:50
Mathematics, 04.02.2021 21:50