Answer the following statement(s) true (T) or false (F)
1. It is a good inertial frame if it is moving at a fixed speed in a straight line.
2. It is a good inertial frame if it is moving at a fixed speed around a curve.
1. TRUE
2. FALSE
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Over time, the star-gas-star cycle leads the gas in the Milky Way to
A) have a greater abundance of heavy elements. B) have a lower abundance of heavy elements. C) become denser and have a greater abundance of heavy elements. D) become denser and hotter.
In a hydrogen atom, the electron makes a transition from the n = 8 to the n = 3 state. The wavelength of the emitted photon is closest to which one of the following values? (c = 3.00 × 108 m/s, 1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ? s)
A) 9.57 × 10-7 m B) 1.13 × 10-6 m C) 3.12 × 10-7 m D) 4.52 × 10-6 m E) 6.34 × 10-7 m
In what ways could a plant such as Kaiparowits be built with less environmental impact?
What will be an ideal response?
A rock is thrown straight up with an initial velocity of 30.0 m/s.What maximum height will the rock reach before starting to fall downward? (Acceleration due to gravity is 9.80 m/s2.)
a. 9.80 m c. 20.4 m b. 19.6 m d. 45.9 m