Cecil is deciding whether to walk or take a bus to get to work. There are two routes he could take. The shorter route is along a 2.8 km path Khat only
pedestrians are allowed to use. The bus takes a longer route along a road.
Cecil is talking to his colleagues about his journey to work.
Cecil
I expect it will
take about an
hour and a half
to walk to work. Estimate how long it would take Cecil to walk the pedestrian route.
Use your answer to determine whether Cecil's expectation is sensible.

What is the internal energy of 4.00 mol of diatomic nitrogen gas n2 at 455k

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)