6) During the Superbowl the quarter back Patrick Mahomes hands 1 point the ball to running back Le'Veon Bell and runs 45 meters in 4.5
seconds for a touchdown. What was his SPEED? *
Distance
Speed =
Distance - Speed x Time
Time =
Distance
Speed
Time
202 meters/second
0.1 meters/second
10 meters/second
ОО
45 meters

Arunner is jogging at a steady 3.6 km/hr. when the runner is 2.9 km from the finish line, a bird begins flying from the runner to the finish line at 14.4 km/hr (4 times as fast as the runner). when the bird reaches the finish line, it turns around and flies back to the runner. even though the bird is a dodo, we will assume that it occupies only one point in space, i.e., a zero-length bird. how far does the bird travel? (b) after this first encounter, the bird then turns around and flies from the runner back to the finish line, turns around again and flies back to the runner. the bird repeats the back and forth trips until the runner reaches the finish line. how far does the bird travel from the beginning? (i.e. include the distance traveled to the first encounter)

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.