Physics Wave Optics Level: Misc Level
Discrete spectral lines occur when excitation takes place in a a. solid b. liquid c. gas d. superconductor e.all of these
Physics Modern Physics Level: Misc Level
An exited atom is an atom a. that has excess vibration b. that has one or more displaced electrons c. that is franctic d. with more protons than electrons
Physics Ray Optics Level: Misc Level
Light will almost always travel from one place to another along a path of least a. distance b. time c.effort d.expense e.complication
Physics Wave Optics Level: Misc Level
Which will warm up quicker in sunlight?a. a piece of colored glass b.a piece of clear glass c. both the same
Physics Wave Optics Level: Misc Level
Color depends on what characteristic of light ?a. it, s frequency b.it,s wavenght c. both of these d. neither of these
Physics Wave Optics Level: Misc Level
The main difference between a radio wave and a sound wave is their different a. frequencies b. wavelengths c. energies d. ampitudes e. basic natures
Physics Measurements Level: Misc Level
A constant volume gas thermometer is calibrated In dry ice (-80.0 degrees Celsius) and in boiling ethyle alcohol (78 degrees Celsius.)The respective pressures are 0.900 atm and 635 atm.
a) what value of absolute zero does the calibration yield.
b) what pressures would be found a the freezing and boiling points of water?
Physics Properties Of Matter Level: Misc Level
A grandfather clock is controlled by a swinging brass pendelum that is 1.2 m long at a temperature of 20 degrees celsius. a) What is the length of the pendelum rod when the temperature drops to 0.degrees Celsius?
Physics Properties Of Matter Level: Misc Level
The Trans-Alaskan pipeline is 1,300 km long, reaching from Prudhoe Bay to the port of Valdez, and is subjected to temperatures ranging from -66 degrees Celsius to 35 degrees Celsius. How much does the steel pipeline expand in km
Physics Properties Of Matter Level: Misc Level
A liquid (density=1.65g/cm^3) flows through two horizontal sections of tubined end to end. In the first section, the cross-sectional area is 10.0cm ^2, the flow speed is 275cm/s, and the pressure is 1.20x10^5 Pa. In the second section, the cross-sectional area is 2.50cm ^2. Calculate the smaller sections a)flow speed and b)pressure.
Physics Properties Of Matter Level: Misc Level
The deepest point in the ocean is in the Mariana Trench which is about 11 km deep. The pressure at the ocean floor is about 1.13x10^8 N/m^2. a) Calculate the change in volume of 1.00m^3 of water carried from the surface to the bottom of the Pacific. b) The density of the water at the surface is 1.03x10^3 kg/m^3. Find its density at the bottom.
Physics Properties Of Matter Level: Misc Level
Air is trapped above liquid ethyl alcohol in a rigid container. If the air pressure is 1.10 atm, determine the pressure inside a bubble 4.0 m below the surface of the liquid.
Mathematics Integration Level: Misc Level
An open box with a square base is to be made out of a given quantity of cardboard whose area is c2 square units. Show that the maximum volume of the box is cubic units.
Mathematics Integration Level: Misc Level
Show that the semi-vertical angle of the right circular cone of given total surface area and maximum volume is
Mathematics Integration Level: Misc Level
Find the maximum volume of the cylinder which can be insrcribed in a sphere of radius cm. (Leave the answer in terms of
)
