The maximum velocity she can reach when she skis to the bottom of the slope is
meters/second.
use pe = m × g × h, g = 9.8 m/s2, and . ignore air resistance and friction.
nextreset

The height of the second hill is about 41.9 meters.

Explanation:

The car has 349,300 joules of energy at the top of the second hill. The mass of the car is 850 kilograms.

Plug the values for PE, m, and g into the formula, and solve for h:

349,300 = 850 × 9.8 × h

so h=349,300/850*9.8

h=41.9

answer:   option a) glucagon was secreted by his pancreas before he ate the cookies because blood glucose was low. insulin was secreted after he ate the cookies because his blood glucose was high.

explanation: