battery
Answers: 2
Another question on Physics
Physics, 22.06.2019 18:30
In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km.h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.
Answers: 2
Physics, 22.06.2019 21:10
Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius ํ
=0.381meters and mass ํ=3.1ํํ. initially ํ"is on the ground and ํ#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of ํ#just before it strikes the ground. assume the pulley bearing is frictionless.
Answers: 2
Physics, 22.06.2019 22:00
Which of these is the best way to manage a natural resource
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
You know the right answer?
A(n) reverses the flow of current through an electric motor.
brush
battery
battery
Questions
Mathematics, 14.12.2020 23:20
Mathematics, 14.12.2020 23:20
Mathematics, 14.12.2020 23:20
Mathematics, 14.12.2020 23:20
Social Studies, 14.12.2020 23:20
English, 14.12.2020 23:20
Mathematics, 14.12.2020 23:20
Biology, 14.12.2020 23:20
Mathematics, 14.12.2020 23:20
Mathematics, 14.12.2020 23:20
Mathematics, 14.12.2020 23:20
English, 14.12.2020 23:20
Social Studies, 14.12.2020 23:20
