Awave is described by: y (x, t) = 5 m sin (100 mt + 2.5
tix) where x is in meters and t is in seconds. (a) what
is the period of the wave? (b) what is the wavelength?
(c) what is the amplitude? (d) what is the speed of
the wave? (e) in what direction does the wave move?
(f) sketch a graph of y(t) at x = 0 (g) sketch a graph of
v(x) at t = 0

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

What is the increase in density of a medium due to wave travel?

Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.