Physics, 28.10.2020 21:10 AnwarWeirdLol8811
Which action best demonstrates the transformation of mechanical energy to heat energy?
digesting a meal
burning a candle
rubbing hands vigorously
melting a piece of ice in sunlight
Answers: 3
Physics, 22.06.2019 00:20
Aparticle of mass m is projected with an initial velocity v0 in a direction making an angle α with the horizontal level ground as shown in the figure. the motion of the particle occurs under a uniform gravitational field g pointing downward. (a) write down the lagrangian of the system by using the cartesian coordinates (x, y). (b) is there any cyclic coordinate(s). if so, interpret it (them) physically. (c) find the euler-lagrange equations. find at least one constant of motion. (d) solve the differential equation in part (c) and obtain x and y coordinates of the projectile as a function of time. (e) construct the hamiltonian of the system, h, and write down the hamilton’s equations (canonical equations) of motion.
Answers: 2
Physics, 22.06.2019 03:50
Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.
Answers: 1
Physics, 22.06.2019 10:00
One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?
Answers: 2
Physics, 22.06.2019 19:30
Which describes increasing the efficiency of energy resource
Answers: 2
Which action best demonstrates the transformation of mechanical energy to heat energy?
digesting a...
Mathematics, 29.08.2020 08:01
Computers and Technology, 29.08.2020 08:01
Mathematics, 29.08.2020 08:01
Mathematics, 29.08.2020 08:01
Chemistry, 29.08.2020 08:01
Mathematics, 29.08.2020 08:01
Mathematics, 29.08.2020 08:01
Mathematics, 29.08.2020 08:01
English, 29.08.2020 08:01