Going to bed at the same time each night sleep because
a.
consistency is the hobgoblin of little minds
b.
biological and circadian rhythms become set
c.
night is the only time a person can get sleep
d.
one gets more rest with less time spent sleeping

What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?

An open cart is moving along a straight frictionless horizontal track. when rain starts falling vertically into the cart, what happens to the speed of the cart?

Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?