How did stanley miller’s experiment in 1953 influence scientific thinking about the origin of life?
a.
it showed that radiometric dating could be used to accurately determine the age of fossils.
b.
it proved that the atmosphere of the early earth contained ammonia and methane.
c.
it proved that organisms could evolve by the process of natural selection.
d.
it showed that the chemicals of life could form in the conditions found on the early earth.

You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?

Which two particles are found in the center of an atom

(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?