Physics, 30.11.2021 23:20 tahiyazaman1493
For typical rubber-on-concrete friction, what is the shortest time in which a car could accelerate from 0 to 70 mph? suppose that μs=1. 00 and μk=0. 80.
Answers: 1
Physics, 22.06.2019 15:00
Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost
Answers: 1
Physics, 22.06.2019 21:10
An athlete swings a ball, connected to the end of a chain, in a horizontal circle. the athlete is able to rotate the ball at the rate of 8.13 rev/s when the length of the chain is 0.600 m. when he increases the length to 0.900 m, he is able to rotate the ball only 6.04 rev/s. (a) which rate of rotation gives the greater speed for the ball? 6.04 rev/s 8.13 rev/s (b) what is the centripetal acceleration of the ball at 8.13 rev/s? m/s2 (c) what is the centripetal acceleration at 6.04 rev/s? m/s2
Answers: 2
Physics, 22.06.2019 22:50
Cyclotrons are widely used in nuclear medicine for producing short-lived radioactive isotopes. these cyclotrons typically accelerate h- (the hydride ion, which has one proton and two electrons) to an energy of 5 mev to 20 mev. this ion has a mass very close to that of a proton because the electron mass is negligible—about 1 2000 of the proton’s mass. a typical magnetic field in such cyclotrons is 1.9 t. (a) what is the speed of a 5.0-mev h-? (b) if the h- has energy 5.0 mev and b = 1.9 t, what is the radius of this ion’s circular orbit?
Answers: 1
For typical rubber-on-concrete friction, what is the shortest time in which a car could accelerate f...
Arts, 17.10.2020 04:01
Physics, 17.10.2020 04:01
Mathematics, 17.10.2020 04:01
History, 17.10.2020 04:01
History, 17.10.2020 04:01
Mathematics, 17.10.2020 04:01
History, 17.10.2020 04:01
English, 17.10.2020 04:01
Mathematics, 17.10.2020 04:01
Mathematics, 17.10.2020 04:01
Biology, 17.10.2020 04:01