Physics, 24.03.2021 21:10 Mattixwillard
How much electricity is used to boil 600 g of water if the kettle has a power of 1500 W? The water boiled for 3 minutes and 9 seconds. Water density is 1000 kg/m3, specific heat of water is 4200 J/(kg· oC).
Answers: 3
Physics, 22.06.2019 15:10
In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_
Answers: 3
Physics, 23.06.2019 00:10
An electromagnetic wave with frequency 65.0 hz travels in aninsulating magnetic material that has dielectric constant 3.64 andrelative permeability 5.18 at this frequency. the electric fieldhas amplitude 7.20 \times 10^{ - 3} {\rm v}/{\rm m}. a. what is the speed of propagation of the wave? b.what is the wavelength of the wave? c.what is the amplitude of the magnetic field? d.what is the intensity of the wave?
Answers: 3
Physics, 23.06.2019 01:00
Suppose that two objects attract each other with a gravitational force of 16 units. if the distance between the two objects is double, what is the new force of attraction between the two objects?
Answers: 3
Physics, 23.06.2019 01:10
Calculate 9 ∙ 10-5 divided by 3 ∙ 10-9. (box after the "10" in answer is for the
Answers: 1
How much electricity is used to boil 600 g of water if the kettle has a power of 1500 W? The water b...
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