Physics, 28.08.2021 04:10 SkinnestXOXO
A bicycle wheel is rotating with an angular velocity of 15 rad/s. The wheel has a mass of 4.9 kg and a radius of 48.6 cm. Treat the wheel as a solid thin disc.
a. Calculate the rotational kinetic energy of the wheel in J.
b. Calculate the angular speed the wheel must have if its rotational kinetic energy is doubled, in rad/s.
Answers: 2
Physics, 21.06.2019 14:10
Gam radio signals can usually be heard behind a hill, but fm often cannot. that is, am signals bend more than fm. explain. (radio signals, as we shall see, are carried by electromagnetic waves whose wavelength for am is typically 200 to 600 m and for fm about 3 m.)
Answers: 2
Physics, 21.06.2019 22:10
How would doubling the made of an object change the objects potential energy
Answers: 2
Physics, 22.06.2019 02:50
An alligator swims to the left with a constant velocity of 5 \,\dfrac{\text{m}}{\text s}5 s m ? 5, space, start fraction, m, divided by, s, end fraction. when the alligator sees a bird straight ahead, the alligator speeds up with a constant acceleration of 3 \,\dfrac{\text {m}}{\text s^2}3 s 2 m ? 3, space, start fraction, m, divided by, s, start superscript, 2, end superscript, end fraction leftward until it reaches a final velocity of 35 \,\dfrac{\text {m}}{\text s}35 s m ? 35, space, start fraction, m, divided by, s, end fraction leftward. how many seconds does it take the alligator to speed up from 5 \,\dfrac{\text {m}}{\text s}5 s m ? 5, space, start fraction, m, divided by, s, end fraction to 35 \,\dfrac{\text {m}}{\text s}35 s m ? 35, space, start fraction, m, divided by, s, end fraction?
Answers: 3
Physics, 22.06.2019 16:20
Which best describes what forms in nuclear fission? a. two smaller, more stable nucleib. two larger, less stable nucleic. one smaller, less stable nucleusd. one larger, more stable nucleus
Answers: 1
A bicycle wheel is rotating with an angular velocity of 15 rad/s. The wheel has a mass of 4.9 kg and...
Mathematics, 11.10.2019 20:00
Mathematics, 11.10.2019 20:00
Biology, 11.10.2019 20:00
Mathematics, 11.10.2019 20:00
Mathematics, 11.10.2019 20:00
Biology, 11.10.2019 20:00
Social Studies, 11.10.2019 20:00
Mathematics, 11.10.2019 20:00
History, 11.10.2019 20:00
Social Studies, 11.10.2019 20:00