Physics, 01.04.2021 19:00 EinsteinBro
A merry-go-round on a playground consists of a horizontal solid disk with a weight
of 795 N and a radius of 1.49 m. A child applies force tangentially to the edge of the
disk to start it from rest and rotate at 47.79 rmp (revolution per minute) in 5.00 s.
(a) Calculate the angular acceleration
(b) Calculate the net torque required for such motion.
(c) Calculate the rotational kinetic energy for such motion.
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Answers: 1
Physics, 21.06.2019 18:10
The difference between two numbers is 15. when twice the smaller number is subtracted from three times the larger number, the difference is 58.what is the larger number?
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Choose a synonym for the underlined homonym (a word with two or more meanings). i did not expect the boat to rock so much. a. boulder c. astound b. sway d. shock
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Physics, 22.06.2019 12:30
Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.
Answers: 1
A merry-go-round on a playground consists of a horizontal solid disk with a weight
of 795 N and a r...
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