Physics, 14.12.2019 02:31 loveoneonly4379
Aball attached to a string is whirled around in a horizontal circle having a radius r. if the radius of the circle is changed to 4r and the same centripetal force is applied by the string, the new speed of the ball is which of the following? a. one-quarter the original speed
b. twice the original speed
c. one-half the original speed
d. four times the original speed
Answers: 2
Physics, 22.06.2019 12:30, promcafee8788
Awheel of mass 48 kg is lifted to a height of 0.8 m. how much gravitational potential energy is added to the wheel? acceleration due to gravity is g = 9.8 m/s2. a. 30.4 j b. 3.1 j c. 297.9 j d. 11,321 j
Answers: 1
Physics, 22.06.2019 13:00, help1572
Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?
Answers: 1
Physics, 22.06.2019 15:00, ReeceLehua01
Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost
Answers: 1
Aball attached to a string is whirled around in a horizontal circle having a radius r. if the radius...
Mathematics, 11.02.2021 20:50
Mathematics, 11.02.2021 20:50