A 2.1W iPod is used for 30 minutes. How much energy does it use? (3

How scientists study the natural world and propose explanations based on evidence is better known as: a. scientific knowledge c. scientific inquiry b. technology d. scientific explanation

Problem 9) If you had light of wavelength 700nm when emitted, what would the wavelength be for an observer who is a red shift z = 0.05 from that source?

How many joules of energy are required to raise thetemperature of 100 g of gold from 20.0 degrees celcius to 100degree celcius?

According to Newton's second law, how are acceleration and mass related? Directly or indirectly when force is constant?

What characteristics are common to all animals

How many (whole number of) 77 kg people can safely occupy an elevator that can hold a maximum mass of exactly 1 metric ton? A metric ton is 1.000 * 103 kg. Answer in units of people

Balanced forces do not change the motion of an object

Maritime climates can be expected in the middle of large continents. True False

Why do scientists think that our solar system must have formed sometime after nearby supernovae explosions?

A professor sits on a rotating stool that is spinning at 10.0 rpm while she holds a heavy weight in each of her hands. Her outstretched hands are 0.785 m from the axis of rotation, which passes through her head into the center of the stool.