We know that the numbers of stars _________ from _______ to ________ on the H-R diagram
a. increases, upper right, lower left b. decreases, upper left, lower right
c. increases, upper left, lower right d. decreases, upper right, lower left
c
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The rings of Uranus were discovered from Earth when the planet passed in front of a star
Indicate whether the statement is true or false
Olympus Mons is the tallest (volcanic) mountain in the entire solar system. Explain how Mars can have mountains taller than the ones on Earth
What will be an ideal response?
Two flat rectangular mirrors are set edge to edge and placed perpendicular to a flat nonreflecting surface. A light ray that reflects from mirror 1 at angle ?M 1 then strikes the second mirror and reflects at ?M 2 such that the angle between the ray reaching mirror 1 and the ray leaving mirror 2 is 180°. The angle between the two mirrors is a. 0°
b. 45°. c. 90°. d. 150°. e. 235°.
The terminals of a battery are connected across two resistors in series. The resistances of the resistors are not the same. Which of the following statements are correct? Choose all that are correct
1.The resistor with the smaller resistance carries more current than the other resistor. 2.The resistor with the larger resistance carries less current than the other resistor. 3.The current in each resistor is the same. 4.The potential difference across each resistor is the same. 5.The potential difference is greatest across the resistor closest to the positive terminal.