Answers: 1
Physics, 21.06.2019 22:20
Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage
Answers: 2
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
Positrons are spontaneously emitted from the nuclei of...
Advanced Placement (AP), 29.11.2021 22:30
Mathematics, 29.11.2021 22:30
Computers and Technology, 29.11.2021 22:30
Computers and Technology, 29.11.2021 22:30
Mathematics, 29.11.2021 22:30
Mathematics, 29.11.2021 22:30
Biology, 29.11.2021 22:30
Mathematics, 29.11.2021 22:30