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(05.03 MC)Which two frequencies will produce a 4-Hz beat frequency if played simultaneously?

(06.09 LC)If an object is moving away at 1.0 E8 m/s and emits light, how fast will that light travel?

(06.04 HC) Describe the concept of thermal equilibrium. Give your own example of a thermal equilibrium. 350 mL of water at 32 °C was poured into a 250 mL of water at 84 °C. The final temperature of this mixture was measured to be 41.33 °C. Is this final temperature possible? Justify your reasoning.

(06.01 MC)An aluminum beam is 10.0 m long at a temperature of 25.0 °C. When the temperature of the beam is raised to 75.0 °C, the bar expands to a final length of 10.012 m. What is the coefficient of linear expansion for aluminum?

(06.02 LC)A liquid substance freezes at 23 °C. Which is true for the same substance?

(04.01 MC)A dust particle with a charge of 3.2 E−7 C is located near a dust cloth carrying a charge of +6.7 E−7 C. If the force acting on the dust particle from the cloth is 4.8 E−4 N, what is the distance between the particle and the cloth?

(06.02 LC)Which state of matter has indefinite volume but is common on Earth?

(06.02 LC)A solid substance melts at 15 °C. Which is true for the same substance?

(06.05 LC)An atom of fluorine has 9 protons and a mass number of 19. How many neutrons does it contain?

(06.05 LC)Which of the following were included in Dalton’s atomic theory? Atoms can be subdivided, created, or destroyed. Atoms of different elements can combine in simple whole-number ratios. In chemical reactions, atoms are combined, separated, or rearranged.