Physics, 26.03.2020 01:30 DerikF9478

A runner taking part in the 200 m dash must run around the end of a track that has a circular arc with a radius of curvature of 50 m. The runner starts the race at a constant speed. If she completes the 200 m dash in 23.4 s and runs at constant speed throughout the race, what is the magnitude of her centripetal acceleration (in m/s2) as she runs the curved portion of the track

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 22:40, kiaunarayne808

The desk has a weight of 75 lb and a center of gravity at g. determine the initial acceleration of a desk when the man applies enough force f to overcome the static friction at a and b. also, find the vertical reactions on each of the two legs at a and at b. the coefficients of static and kinetic friction at a and b are ms = 0.5 and mk = 0.2, respectively

Answers: 2

continue

Physics, 22.06.2019 13:30, Bra1nPowers

6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.

Answers: 3

continue

Physics, 22.06.2019 14:30, darceline1574

Alandscaper is shopping for landscaping materials. she wants to use materials through which water flows easily. which materials should she choose? check all that apply. clay gravel granite rocks with cracks loosely packed soil

Answers: 2

continue

Physics, 22.06.2019 18:00, skylarleannjone2751

The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.

Answers: 1

continue

You know the right answer?

A runner taking part in the 200 m dash must run around the end of a track that has a circular arc wi...