A room in a house has a floor area of 110 ft2 . Which of the following is most likely the approximate volume of the room?
a. 3 m3
b. 30 m3
c. 300 m3
d. 3 000 m3
e. 10 m3
b
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The Kuiper Belt is a collection of asteroid-sized icy bodies orbiting the Sun beyond the orbit of Neptune
Indicate whether the statement is true or false
Lead has a latent heat of fusion of 2.32 × 104 J/kg, and a specific heat of 128 J/(kg K), and a melting point of 228°C. The ambient temperature is 16°C. A 30-g lead bullet hits a solid surface and comes to a complete stop
What would the velocity of the bullet have to be in order for it to melt completely when it hits the wall, assuming that all its kinetic energy is transformed into heat? A) 207 m/s B) 215 m/s C) 232 m/s D) 273 m/s E) 318 m/s
A projectile is fired from ground level with a speed of 150 m/s at an angle 30° above the horizontal on an airless planet where g = 10.0 m/s2. What is the horizontal component of its velocity after 4.0 s?
A) 38 m/s B) 75 m/s C) 150 m/s D) 130 m/s E) 35 m/s
A general principle of ionic compound formation is that the total ionic charge in the formula unit must be
a. 0. b. no greater than that of the metal ion. c. between +4 and –4. d. no less than that of the nonmetal ion.