The Miller-Urey experiment sought to recreate conditions in Earth's early atmosphere
Indicate whether the statement is true or false
TRUE
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Newton's law of gravitational force is expressed as follows:
a. An object with no force on it moves in a straight line with constant velocity. b. An object with a force on it is accelerated in the direction of the force an amount inversely proportional to its mass and directly proportional to the size of the force. c. For every action there is an equal and opposite reaction. d. The force between two objects is directly proportional to the product of their masses and inversely proportional to the distance between them squared.
Approximately what mass ratio is required for a rocket to leave the Earth's gravity?
A) 60 B) 99 C) 25 D) 39
A 0.13-m string, fixed at both ends and vibrating in its n = 4 harmonic, excites a pipe that is long and open at both ends, into its second overtone resonance
What is the speed of transverse waves on the string? The speed of sound in air is 345 m/s. A) 30 m/s B) 38 m/s C) 36 m/s D) 32 m/s E) 34 m/s
The Hubble Space Telescope
a. has a flawed primary mirror b. has been repaired c. has failed d. none of the above