(a) Assume that a neutron traveling at 3.00(103) km/s strikes the nucleus of a motionless 11Na23 atom in a reactor core. The collision causes the neutron to recoil elastically, and it travels backward along exactly the same path it traveled as it approached the atom. Calculate the velocity of the neutron after the collision. (b) Perform the same calculation for a 3.00(103) km/s neutron striking a 3Li7 atom nucleus. Based on your answers from these two calculations, which metal would perform better for use as coolant in a LMFBR where high neutron velocity is preferred

Which process is represented by the pv diagram? a. the isobaric process b. the isovolumetric process c. the isothermal process d. the adiabatic process

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.

The force it would take to accelerate an 900-kg car at the rate of 6m/s2