Physics, 24.09.2019 01:30 Bangggggg6
Aand b can both walk at a speed 2.4 m/s and run at a speed 5.5 m/s. they start off together to go a distance 65 m. a walks for one half of the time it takes him to reach the distance, and runs for the remaining half the time. b, on the other hand, walks for half the distance, and runs for the remaining half the distance. calculate how much sooner will a reach the distance as compared to b.
Answers: 2
Physics, 22.06.2019 05:30
Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.
Answers: 2
Physics, 22.06.2019 06:30
Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)
Answers: 1
Physics, 22.06.2019 12:00
The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?
Answers: 3
Physics, 22.06.2019 22:10
Astep up transformer has 250 turns on its primary and 500 turns on it secondary. when the primary is connected to a 200 v and the secondary is connected to a floodlight that draws 5a, what is the power output? show all of your work.
Answers: 1
Aand b can both walk at a speed 2.4 m/s and run at a speed 5.5 m/s. they start off together to go a...
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