Almost all the stars we see around us with the naked eye are relatively ________ in age
Fill in the blank(s) with correct word
young
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Suppose you heat up an oven and boil a pot of water. Which of the following explains why you would be burned by sticking your hand briefly in the pot but not by sticking your hand briefly in the oven?
A) The oven has a higher temperature than the water. B) The water has a higher temperature than the oven. C) The oven has a higher heat content than the water. D) The molecules in the water are moving faster than the molecules in the oven. E) The water has a higher heat content than the oven because of density.
A Ferris wheel starts at rest and builds up to a final angular speed of 0.70 rad/s while rotating through an angular displacement of 2.5 rad. What is its average angular acceleration?
a. 0.098 rad/s2 c. 1.8 rad/s2 b. 0.05 rad/s2 d. 0.60 rad/s2
Particle A (mass = m, charge = Q) and B (mass = m, charge = 5 Q) are released from rest with the distance between them equal to 1.0 m. If Q = 12 mC, what is the kinetic energy of particle B at the instant when the particles are 3.0 m apart?
a. 8.6 J b. 3.8 J c. 6.0 J d. 2.2 J e. 4.3 J
This diagram represents the carbon dioxide cycle. Which position in the diagram represents the part of the cycle in which carbon dioxide is turned into carbonate minerals and rock?
A) Position 1 B) Position 2 C) Position 3 D) Position 4