Physics, 04.08.2019 15:10 Xghoued2056
An originally stationary car with a mass of 1500 kg which velocity of 15 m/s, five second after starting. what is the car’s acceleration? how much force was required to reach this acceleration
Answers: 1
Physics, 21.06.2019 23:30
Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.
Answers: 1
Physics, 22.06.2019 05:00
Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.
Answers: 1
Physics, 22.06.2019 13:40
Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?
Answers: 1
Physics, 22.06.2019 14:30
Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.
Answers: 2
An originally stationary car with a mass of 1500 kg which velocity of 15 m/s, five second after star...
Mathematics, 27.10.2021 17:20
Physics, 27.10.2021 17:20
Physics, 27.10.2021 17:20
Biology, 27.10.2021 17:20
Business, 27.10.2021 17:20
English, 27.10.2021 17:20
English, 27.10.2021 17:20
English, 27.10.2021 17:20
Computers and Technology, 27.10.2021 17:20
English, 27.10.2021 17:20
Computers and Technology, 27.10.2021 17:20