If the pole-vaulter were to land on concrete rather than on a cushion, the impulse that stops the fall would be:
a. greater because of the rigidity of the concrete.
b. greater because the force of impact is greater.
c. less, because there is less change in momentum during the stop.
d. less, because he would come to a stop over a shorter period of time.
e. the same because impulse is the change in momentum of the object.
Question 2
Momentum is measured in:
a. kilograms per second.
b. meters per kilogram.
c. kilogram-meters per second.
d. kilogram-meters per second per second.
e. kilogram-seconds per meter.
The conduction system of the heart; traces the path of the electrical impulse that stimulates the he
Observed global land and ocean surface temperature anomalies since 1850
A very small sampling of organisms in an arctic food web on land.
Plot of land (Part b)
Offset Method Plot of Land
Generalized life cycle for land plants