Physics, 07.11.2019 04:31 natalievick03
The flywheel of a steam engine runs with a constant angular velocity of 190 rev/min. when steam is shut off, the friction of the bearings and of the air stops the wheel in 2.4 h. (a) what is the constant angular acceleration, in revolutions per minute-squared, of the wheel during the slowdown? (b) how many revolutions does the wheel make before stopping? (c) at the instant the flywheel is turning at 95.0 rev/min, what is the tangential component of the linear acceleration of a flywheel particle that is 38 cm from the axis of rotation? (d) what is the magnitude of the net linear acceleration of the particle in (c)?
Answers: 1
Physics, 21.06.2019 15:00
An uncharged nonconductive hollow sphere of radius 18.0 cm surrounds a 12.0 µc charge located at the origin of a cartesian coordinate system. a drill with a radius of 1.00 mm is aligned along the z axis, and a hole is drilled in the sphere. calculate the electric flux through the hole.
Answers: 3
Physics, 21.06.2019 22:30
Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.
Answers: 1
Physics, 22.06.2019 09:30
Which of these is not a possible type of energy transformation? a. electrical energy into light energy b. sound energy into nuclear energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy
Answers: 1
The flywheel of a steam engine runs with a constant angular velocity of 190 rev/min. when steam is s...
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