A disk rotates al constant angular acceleration , from angular position θ 1 = 10.0 rad to angular position θ 2 = 70.0 rad in 6.00 s. Its angular velocity at θ 2 is 15.0 rad/s. (a) What was its angular velocity at θ 1 ? (b) What is the angular acceleration? (c) At what angular position was the disk initially at rest? (d) Graph θ versus time t and angular speed ω versus t for the disk, from the beginning of the motion (let t = 0 then).
A disk rotates al constant angular acceleration , from angular position θ 1 = 10.0 rad to angular position θ 2 = 70.0 rad in 6.00 s. Its angular velocity at θ 2 is 15.0 rad/s. (a) What was its angular velocity at θ 1 ? (b) What is the angular acceleration? (c) At what angular position was the disk initially at rest? (d) Graph θ versus time t and angular speed ω versus t for the disk, from the beginning of the motion (let t = 0 then).
A disk rotates al constant angular acceleration, from angular position θ1 = 10.0 rad to angular position θ2 = 70.0 rad in 6.00 s. Its angular velocity at θ2 is 15.0 rad/s. (a) What was its angular velocity at θ1? (b) What is the angular acceleration? (c) At what angular position was the disk initially at rest? (d) Graph θ versus time t and angular speed ω versus t for the disk, from the beginning of the motion (let t = 0 then).
Definition Definition Angle at which a point rotates around a specific axis or center in a given direction. Angular displacement is a vector quantity and has both magnitude and direction. The angle built by an object from its rest point to endpoint created by rotational motion is known as angular displacement. Angular displacement is denoted by θ, and the S.I. unit of angular displacement is radian or rad.
A radiography contingent are carrying out industrial radiography. A worker accidentally crossed a barrier exposing themselves for 15 seconds at a distance of 2 metres from an Ir-192 source of approximately 200 Bq worth of activity. What dose would they have received during the time they were exposed?
In the following figure the circuit to the left has a switch thatat t = 0 s is switched and disconnects the battery from the circuit. The state depicted on thefigure is right after the switch, still t = 0. As the current decreases over time, the magneticflux through the circuit on the right (due to the long cable of the circuit on the left) changesand induces an EMF on the right circuit. How much power is consumed by R2 as a functionof time.The distance between the wire on the left and the closest wire on the right is r = 2.0 cm.The size of the circuit on the right is noted on the figure.
singly
A
samply
ionized helium atom is in the ground state. It absorbs
energy
and makes a transition to the n=7 excited state. The ion returns to
wo
the wavelength
the ground state by emitting SIX photons ONLY. What is the
of the second highest energy photon ?
Human Physiology: An Integrated Approach (8th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.