Aheat engine that operates on a carnot cycle between 150 ? c and 10 ? c is used to accelerate a flywheel from rest to a rotational speed of 8.50 s? 1. the 1700-kg flywheel is a solid uniform cylinder that rotates about its long central axis without appreciable friction. its diameter is 1.00 m, and it is 750 mm long.
a) how much thermal energy must be transferred into this engine to accelerate the flywheel to the desired rotational speed?
b) how much of this thermal energy is wasted in the process?

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?

An charge with mass m and charge q is emitted from the origin, (x,y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.