Physics Properties Of Matter Level: Misc Level
Water enters a house through a pipe with an inside diameter of 2.0 cm at an absolute pressure of 4 atm.A 1.0 cm diameter pipe leads to the second floor bathroom 5.0 m above. When the flow speed at the inlet pipe is 1.5 m/s, find the flow speed, pressure and the volume flow rate in the bathroom.
Physics Properties Of Matter Level: Misc Level
A compressed spring that obeys Hooke's law has a potential energy of 18J . If the spring constant of the spring is 4 N/cm , find the distance by which the spring is compressed.
Physics Properties Of Matter Level: Misc Level
An ideal gas is held in a container at constant volume, Initially, its temperature is 10.0 degrees celsius and its pressure is 2.50 atm.What is its pressure when its temperature is 80.0 degrees Celsius?
i) what is the pressure of the gas if it is cooled to -20 degrees celsius?
Physics Properties Of Matter Level: Misc Level
Approximately 118 mi wide and 307 mi long and averaging 279 ft in depth, Lake Michigan is the second- largest Great lake by volume. Estimate its volume of water in m3. (Note that 2.54 cm =1 inch and 5280 feet =1 mile)
Physics Properties Of Matter Level: Misc Level
Consider a flat steel plate with a hole through its center. When the plate s temperature is decreased, the hole will
(a) expand if takes up less than half the plates surface area.
(b) contrct only if it takes up more than half the plate s surface area.
(c) expand
(d) contract
Physics Properties Of Matter Level: Misc Level
Describe the anomalous thermal expansion property of water and its significance.Temperature Near freezing, water has a negative expansion coefficent which means it expands as it cools and freezes. Since ice is less dense then the liquid water, it floats and stays on top of lakes and oceans. This has allowed aquatic life to survive UNDER the ice even during very cold times.Temperature Near freezing, water has a postive expansion coefficient which means it expands as it cools and freezes. Since ice is more dense than the liquid water, it floats and stays on top of lakes and oceans. This has allowed aquatic life to survive UNDER the ice even during very cold times.
Physics Properties Of Matter Level: Misc Level
By how much will a slab of concrete 18 m long contract when the temperature drops from 24 % C to - 16 % C? ( The coefficient of linear thermal expansion for concrete is 12 x 10 -6 per degree C.)
(a) 0 .17 cm
(b) 0.52 cm
(c) 0.86 cm
(d) 8.6 cm
Physics Properties Of Matter Level: Misc Level
The kinetic theory of gases suggests that the average kinetic energy per molecule of an ideal ( mono -atomic) gas is.
(a) kT
(b) 3/2 kT
(c) 2 kT
(d) 1/2 kT
Physics Properties Of Matter Level: Misc Level
Explain the difference in molecular behavior for molecules in a solid compared each of molecules in a liquid and molecules in a gas. Assume that all three are at the same temperature.
Physics Properties Of Matter Level: Misc Level
The weight that will cause a wire of diameter d to stretch a given distance, for a fixed length of wire, is
a. proportional to d.
b. proportional to d 2.
c. independent of what the length of the wire is.
d. independent of d.
Physics Properties Of Matter Level: Misc Level
A copper wire is found to break when subjected to minimum tension of 36 N. If the wire diameter were half as great, we would expect the wire to break when subjected to a minimum tension of ?
Physics Properties Of Matter Level: Misc Level
A). The slits in a Young's Interference apparatus are illuminated with monochromatic light of wavelength ~. The third dark band is y from the central axis. The two slits are d apart and the screen is L away from the slits. We want to calculate the wavelength of the light used. what is y in terms of y., d and L ? b). Compute the wavelength in this experiment if y = 12.1 mm, L= 139 cm and d =, 339 mm. Answer in units of m.
Physics Properties Of Matter Level: Misc Level
A container is filled to a depth of 20.0 cm with water, on top of the water floats a 30.0 cm layer of oil with specific gravity of .700. What is the absolute pressure at the bottom of the container?
Physics Properties Of Matter Level: Misc Level
What is the pressure change in water going from a 3. 0 m diameter pipe to 3.0 cm diameter pipe if the velocity in the large pipe is 0.4 m/s?
Physics Properties Of Matter Level: Misc Level
Identicle spheres are suspended by light strings. If air is blown between the spheres, the spheres will---.
a. move toward one another b. move away from one another c. stay the same distance from one another
