Physics, 25.02.2020 00:54 linettepizarro1233
A crane at a construction site lifts a concrete block with a mass of m = 344 kg from the ground to the top of a building with a height of h = 18.3 m. How much work did the motor of the crane do? (Assume zero energy loss in the lifting mechanism due to friction.)
Answers: 2
Physics, 21.06.2019 23:30
Awoman stands a distance d from a loud motor that emits sound uniformly in all directions. the sound intensity at her position is an uncomfortable 2.0×10-3 w/m2. at a distance 2.6 times as far from the motor, what are (a) the sound intensity and (b) the sound intensity level relative to the threshold of hearing?
Answers: 1
Physics, 22.06.2019 08:50
The experiment was repeated many years later but the gases were mixed in a different type of container. a white solid was obtained which was xenon fluoride. predict whether you think 1) krypton and 2) radon will react with fluorine. explain reasons for your predictions
Answers: 3
Physics, 22.06.2019 09:00
Infrared rays have a shorter wavelength than question 11 options: x-rays. ultraviolet rays. radio waves. gamma rays.
Answers: 1
Physics, 22.06.2019 10:00
The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.
Answers: 2
A crane at a construction site lifts a concrete block with a mass of m = 344 kg from the ground to t...
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