Afreight train consists of two 8.00Γ104-kg engines and 45 cars with average masses of 5.50Γ104 kg . (a) what force must each engine exert backward on the track to accelerate the train at a rate of 5.00Γ10β2m/s2 if the force of friction is 7.50Γ105n, assuming the engines exert identical forces?
Answers: 3
Physics, 22.06.2019 10:00
Amira pulls a 3 pound wagon 4 feet. how much work has she done?
Answers: 2
Physics, 22.06.2019 11:20
Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .
Answers: 3
Physics, 22.06.2019 19:30
Emagnitude of the electrical force acting between a +2.4 Γ 10β8 c charge and a +1.8 Γ 10β6 c charge that are separated by 0.008 m is n, rounded to the tenths place.
Answers: 3
Physics, 22.06.2019 21:30
A1500 w electric heater is plugged into the outlet of a 120 v circuit that has a 20 a circuit breaker. you plug an electric hair dryer into the same outlet. the hair dryer has power settings of 600 w, 900 w , 1200 w, and 1500 w. you start with the hair dryer on the 600 w setting and increase the power setting until the circuit breaker trips. under what setting does the circuit breaker trip.
Answers: 2
Afreight train consists of two 8.00Γ104-kg engines and 45 cars with average masses of 5.50Γ104 kg ....
Mathematics, 02.10.2019 09:00
Social Studies, 02.10.2019 09:00
Physics, 02.10.2019 09:00
English, 02.10.2019 09:00
Mathematics, 02.10.2019 09:00
Biology, 02.10.2019 09:00
Biology, 02.10.2019 09:00
History, 02.10.2019 09:00
English, 02.10.2019 09:00
Mathematics, 02.10.2019 09:00
Mathematics, 02.10.2019 09:00