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Question 1 (1 point)
A 100 kg biker (including bike) is riding uphill using with a total applied force of 500 N. However, friction from the air is 10 N and friction from the road is 50 N.
Calculate the bikers acceleration up the hill,

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.