Physics, 01.02.2020 21:42 EthanIsHyper
Asolid disk of mass m1 = 9.8 kg and radius r = 0.19 m is rotating with a constant angular velocity of ω = 33 rad/s. a thin rectangular rod with mass m2 = 3 kg and length l = 2r = 0.38 m begins at rest above the disk and is dropped on the disk where it begins to spin with the disk. 1) what is the initial angular momentum of the rod and disk system? 5.83737 kg-m2/s 2) what is the initial rotational energy of the rod and disk system? 96.32 j 3) what is the final angular velocity of the disk? 27.40677966 rad/s 4) what is the final angular momentum of the rod and disk system? 5.83737 kg-m2/s your submissions: 5.83737 computed value: 5.83737submitted: monday, april 8 at 11: 09 pm feedback: correct! 5) what is the final rotational energy of the rod and disk system? 2.918685 j your submissions: 2.918685 computed value: 2.918685submitted: monday, april 8 at 11: 10 pm feedback: 6) the rod took t = 6 s to accelerate to its final angular speed with the disk. what average torque was exerted on the rod by the disk?
Answers: 1
Physics, 22.06.2019 03:30
Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n
Answers: 1
Physics, 22.06.2019 04:20
When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.
Answers: 1
Physics, 22.06.2019 16:00
Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?
Answers: 1
Asolid disk of mass m1 = 9.8 kg and radius r = 0.19 m is rotating with a constant angular velocity o...
Mathematics, 21.10.2020 22:01
English, 21.10.2020 22:01
Chemistry, 21.10.2020 22:01
Mathematics, 21.10.2020 22:01
Business, 21.10.2020 22:01
Mathematics, 21.10.2020 22:01
Mathematics, 21.10.2020 22:01
Mathematics, 21.10.2020 22:01
English, 21.10.2020 22:01