2. 014 points 1 previous answers my notes ask your teacher jason eats a 177 kcal cup of yogurt. a bit later, he climbs up some stairs at a leisurely pace, 20% of the chemical energy from the yogurt is transformed into gpe as jason climbs the stairs, while the remainder is used by other processes in jason's body along with heat transfer to the environment. a. how many joules of energy does the yogurt supply to jason? 42.2 b. how much of the chemical energy can be transformed into gpe by climbing the stairs? c. jason gains gpe at a rate of 135 w. remember that 1 w = 1 j/s. for how many minutes can jason climb stairs from the energy gained by eating the yogurt? min d. based on the time found in part c, do you think it is easy to consume more food calories in one day than you can reasonably expect to work off with an hour of exercise? think about how many food calories a person typically consumes in a day. o yes o no

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles

russian is not my first language, so i'm afraid i can't write out an answer in russian, but hopefully you can find a way to do so. here's my best translation of the problem: you're given a plot of a particle's position in one-dimensional space over time, and you're asked to find either the total distance traveled by the particle after 6 seconds had elapsed, or the total displacement of the particle after 6 seconds.

if you want the total distance traveled, you would first need to determine the particle's velocity as a function of time, then integrate that over the 6-second interval. we know the position function is quadratic with roots at 0 and 6, so we have

where is unknown. because the position is parabolic, there is symmetry about the midpoint at , and we know that

so that the position function is

which means the velocity is

then the total distance traveled is

so the total distance traveled is 20 m.

on the other hand, if you want to find displacement: the particle starts at and ends at , so its displacement is 0.

it's a b and