Question 9 Multiple Choice Worth 3 points) (01.04 HC)
The table shows the potential energy and kinetic energy of a skler at two different positions on a hill.
Position and Energy
Position (above ground) Kinetic Energy Potential Energy
100 meters
O units
50,000 units
60 meters
20,000 units
?
What is the potential energy of the skier at a height of 60 meters above the ground?
30,000 units, because total energy decreases
70,000 units, because total energy decreases
30,000 units, because total energy remains unchanged
70,000 units, because total energy remains unchanged

Which hotel do you think is most likely to move ahead in market competition? a. a hotel that provides basic amenitiesb. a hotel that provides luxurious amenitiesc. a hotel that shows understanding of customers' latent needsd. a hotel that gives discounts

Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling

What is the number of phosphates in an atp molecule