If a bicyclist, with an initial velocity of zero, steadily gained speed until reaching a final velocity of 26m/s, how far would she travel during this race? (The race time is stated at the top of the problem)

When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.

What are two different ways you could find the value of a? explain these methods.

Which of the following is the main energy source for the sun? a. fission of hydrogen b. fusion of hydrogen c. fusion of helium d. fission of iron