Which one of the following quantities is at a maximum when an object in simple harmonic motion is at its maximum displacement?
a. speed
c. kinetic energy
b. acceleration
d. frequency
B
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In what way is the rocky material of Jupiter's core different from the rocks found on Earth?
a. It is much cooler because Jupiter is further from the Sun. b. It contains more liquid water. c. It is much hotter and denser because of the extreme pressure at the core of Jupiter. d. It is not composed of iron and nickel because this material will float of the surface. e. It is composed entirely of ices that have frozen into a large rock-like structure.
List the following events in the order in which they occurred, from first to last.
a) earliest humans b) earliest animals c) impact causes extinction of dinosaurs d) earliest mammals e) earliest plants living on land f) first time there is significant oxygen in Earth's atmosphere g) first life on Earth
If the potential energy diagram, when shown as a function of the separation of the atoms in the molecule, has a positive slope, then the force between the atoms
A) has the highest possible value. B) is attractive. C) has the lowest possible value. D) is repulsive. E) is none of the above.
Two uses of ultrasound are navigation by bats and controlling insects
Indicate whether the statement is true or false