The combination of an applied force and a friction force produces a constant total torque of 36.2 n · m on a wheel rotating about a fixed axis. the applied force acts for 6.20 s. during this time, the angular speed of the wheel increases from 0 to 10.4 rad/s. the applied force is then removed, and the wheel comes to rest in 59.8 s.
(a) find the moment of inertia of the wheel.
(b) find the magnitude of the torque due to friction.
(c) find the total number of revolutions of the wheel during the entire interval of 66.5 s.

Scientists use laser range-finding to measure the distance to the moon with great accuracy. a brief laser pulse is fired at the moon, then the time interval is measured until the "echo" is seen by a telescope. a laser beam spreads out as it travels because it diffracts through a circular exit as it leaves the laser. in order for the reflected light to be bright enough to detect, the laser spot on the moon must be no more than 1.0 km in diameter. staying within this diameter is accomplished by using a special large-diameter laser. part a if λ = 540nm , what is the minimum diameter of the circular opening from which the laser beam emerges? the earth-moon distance is 384,000 km. express your answer to two significant figures and include the appropriate units.

The act of moving from one place to another. a. locomotor b. aerobic c. stationary d. static

Which of the following are not typically included in the periodic table? a. atomic mass b. element symbol c. isotopes d. number of electrons