Capella is the same temperature as our Sun, but about ten times the Sun's diameter; it must be about ________ times as luminous as our star
Fill in the blank(s) with correct word
100
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A piston compresses a gas, while at the same time heat is lost to the surroundings. The temperature of the gas rises. This is governed by the __________ law of thermodynamics
Fill in the blank(s) with correct word
A 4.00-kg mass and a 9.00-kg mass are being held at rest against a compressed spring on a frictionless surface
When the masses are released, the 4.00-kg mass moves to the east with a speed of 2.00 m/s. What is the velocity of the 9.00-kg mass after the masses are released? A) 2.00 m/s west B) 0.888 m/s west C) 0.500 m/s east D) 4.50 m/s west E) 0.500 m/s west
Magnesium has atomic number 12 . In its ground state, how many electrons are in its n = 3 shell?
a. 2 c. 16 b. 8 d. 10
Refractor telescopes suffer from this separation of light into its component colors
A) limited diffraction B) spherical aberration C) chromatic aberration D) bad seeing E) refraction