angelcrystalB1440 angelcrystalB1440

19-11-2022
Physics

contestada

2. When doing a chin-up, a physics student lifts her 42. 0-kg body a distance of

0. 25 meters in 2 seconds. What is the power delivered by the student's

biceps?

Respuesta :

19-11-2022

Answer: 51.45 W

Explanation:

Work = W = Force x Displacement = Fd

W = (mg)(d) = (42 kg)(9.8 m/s2)(0.25 m) = 102.9 J

Force applied is equal to the weight of the student

Power = P = W/t = 102.9J / 2 s = 51.45 Watts

Answer Link

Otras preguntas

"A company has a policy of retiring company cars; this policy looks at number of miles driven, purpose of trips, style of car and other features. The distributi

A hotel manager records the number of bookings made at various prices during July.What type of correlation does the graph show?

I’ll more u brainlies plz The property for -y/2 -6+6=15+6 and -2•-y/2=-2•21

why do we apply paint on an articles

In line 81 Roger says "M'am?" because he is sur- prised at Mrs. Jones's response. What might he have expected her to say? Please help

hellppp meee pleaaseee

In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer. i.Radhika answered all the questions and scored 30

As a health care professional, why do eukaryotic parasites need to be reported within 7 days instead of immediately

Which shows a correct order to solve this story problem? Phoebe bought 2 muffins for $1.99 each and 2 cups of milk for $1.50 each at her favorite diner. She lef

You decide to use your department store charge card .. a lot! After seven weeks you have racked up $1,400 of debt. Your minimum monthly payment is $45, and is p