To impress his friends while riding on a carnival
Ferris wheel, Prankster Paul gets out of his
chair and climbs along the spoke of the wheel
toward its center while the wheel continues in
uniform motion. While climbing toward the
center, Paul's linear speed

A. increases while his angular speed remains
unchanged.
B. decreases while his angular speed remains
unchanged.
C. and his angular speed increase.
D. and his angular speed decrease.

B. decreases while his angular speed remains  unchanged.

Explanation:

His angular speed will always be the same as the wheel's angular speed, which remains constant as it's in uniform motion. As for linear speed, which is defined as the product of angular speed and distance r to the center of rotation, and his distance to center is decreasing, his linear speed must be decreasing as well.

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.