How many arcseconds are in one arcminute?
A) 10,000
B) 60
C) 360
D) 100
E) 3600
B
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The last fusion product possible in stars is ________ because ________.
A. carbon; no stars are hot enough in their cores to fuse carbon nuclei B. iron; no stars are hot enough in their cores to fuse iron nuclei C. iron, fusing iron nuclei absorbs energy; it does not liberate it D. lead, fusing lead nuclei absorbs energy; it does not liberate it
A billiard ball (Ball #1) moving at 5.00 m/s strikes a stationary ball (Ball #2) of the same mass. After the elastic collision, Ball #1 moves at a speed of 3.50 m/s. Find the speed of Ball #2 after the collision
a. 1.25 m/s c. 2.16 m/s b. 1.50 m/s d. 3.57 m/s
Particles (mass of each = 0.20 kg) are placed at the 40-cm and 100-cm marks of a meter stick of negligible mass. This rigid body is free to rotate about a frictionless pivot at the 0-cm end. The body is released from rest in the horizontal position. What is the initial angular acceleration of the body?
a. 12 rad/s2 b. 5.9 rad/s2 c. 8.4 rad/s2 d. 5.4 rad/s2 e. 17 rad/s2
____ is the molecule that carries information from the cell nucleus out into the cell where specific proteins are made from the information
a. An enzyme b. DNA c. RNA d. ALH84001 e. PAH