At t = 6 hours? At t = 12 hours? Draw in each of these locations and connect the path between the stars. For what fraction of the day is star B visible? d)Draw in C at the specified coordinates (as best you can) and assume that this is time t = 0 hrs. Estimate the coordinates of the star at t = 6 hours? At t = 12 hours? At t = 24 hours? For what fraction of the day is star C visible?

Bernie drove home from a vacation in 1.5 hours. he traveled a total distance of 60 miles. what was his average speed in miles per hour? a. 60 mph b. 90 mph c. 40 mph d. 55mph

The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?

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.