If you increase the number of slits in an array (but keep the spacing between adjacent slits the same), what happens to the diffraction pattern? a. The number of bright fringes decreases.
b. The number of bright fringes increases.
c. The width of the bright fringes decreases.
d. The distance between the centers of the bright fringes increases.
e. The distance between the centers of the bright fringes decreases.
f. The width of the bright fringes increases.

The optimistic view of human nature held by supporters of the humanistic perspective led to more positive views of human nature throughout the field of psychology.t or f?

A23 kg log of wood begins from rest, 300 m up a sluice (a water track used to transport logs, think of it as an inclined plane with negligible friction) inclined at 20° to the horizontal. after it reaches the flat waterway at the bottom it collides elastically with a 100 kg block of wood initially at rest near the base of the incline. (a) how long does it take the 23 kg log to travel down the incline? (b) what is the speed of the 23 kg log at the bottom of the incline? (c) what are the velocities of both blocks of wood after the collision? (d) what is the total kinetic energy before the collision? (e) what is the kinetic energy of the 23 kg log after the collision? (f) what is the kinetic energy of the 100 kg block of wood after the collision? (g) what is the total kinetic energy after the collision? (h) compare the total initial and total final kinetic energies. is this consistent with what you would expect for elastic collisions? explain!

The slope of a velocity time graph over any interval of time gives the during that interval