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Which is the distance traveled and which is the total displacement of astronaut B, in the
following case?
a) 300 m distance traveled and a bit more than 200 m displacement
b). More than 200 m distance traveled and 300 m displacement
c) They are the same
d) 200 m distance traveled and 200 m displacement
VIEW THEORY

A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.

Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.

According to the image below, which season is about to begin in the southern hemisphere? a. summer b. autumn c. winter d. spring