If 25 kg of ice at 0°C is combined with 4 kg of steam at 100°C, what will be the final equilibrium temperature (in °C) of the system?
a. 40
b. 20
c. 60
d. 100
e. 8
b
Physics & Space Science
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The attraction between unlike substances is called
A) adhesion. B) cohesion. C) depends on the substances.
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How does content of elements heavier than helium vary between young and old stars? Why?
What will be an ideal response?
Physics & Space Science
The angle of incidence of a light wave is
a. different depending on whether there is diffuse or specular reflection. b. measured from a normal to the surface. c. equal to the angle of refraction. d. measured relative to the surface of the material.
Physics & Space Science
The most luminous quasars can give off ________ times more light than our own Galaxy
Fill in the blank(s) with correct word
Physics & Space Science