The wavelength of a wave divided by the frequency of the wave is the wave's speed.
a. True
b. False
Indicate whether the statement is true or false
[Ques. 2] The maximum displacement of points on a wave from the equilibrium position is the wave's wavelength.
a. True
b. False
Indicate whether the statement is true or false
[Ques. 3] The distance between two successive like' points on a wave is the wave's wavelength.
a. True
b. False
Indicate whether the statement is true or false
[Ques. 4] The number of cycles of a wave passing a point per unit time is the wave's period.
a. True
b. False
Indicate whether the statement is true or false
[Ques. 5] The flash from a camera is an example of a continuous wave.
a. True
b. False
Indicate whether the statement is true or false
[Ques. 6] An aluminum wing on a plane is 38 m long when the temperature is 20 oC. At what temperature (in oC) would the wing be 0.04 m shorter? Enter your answer to one decimal place. You should think about the physics of the situation before trying to solve the problem. (Hint: You are being asked for a temperature, not a temperature change).
[Ques. 7] What is the maximum efficiency of a heat engine operating between 293 Kelvins and 273 Kelvins, the temperatures at the surface and several hundred meters below the surface, respectively, of the ocean?
[Ques. 8] On a winter day the temperature is 5 degrees Celsius and the humidity is 0.003 kilograms per cubic meter. (a) What is the relative humidity? (b) The air is brought into a building and heated to 20 degrees Celsius without changing the humidity. What is the relative humidity inside the building?
[Ques. 9] A baseball with mass 0.14 kilograms and speed 40 m/s is caught. If all of its kinetic energy is converted to internal energy as it is caught, what is its temperature change? (Assume the baseball's specific heat capacity is 1,000 joules per kilogram degree Celsius.)
[Ques. 10] A 4 kilogram block of ice is removed from a freezer where its temperature was maintained at 20 degrees Celsius. How much heat does the ice absorb as it is warmed to 10 degrees? (The specific heat capacity of ice is 2,000 joules per kilogram degree Celsius.)
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