Physics, 10.10.2019 21:00, romyknight

Karen has a mass of 57.9 kg as she rides the up escalator at woodley park station of the washington d. c. metro. karen rode a distance of 69.6 m, the longest escalator in the free world. the acceleration of gravity is 9.8 m/s 2 . how much work did the escalator do on karen if it has an inclination of 34.8 ◦ ? answer in units of j.

Answers: 2

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 00:40, naomicervero

The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.

Answers: 1

continue

Physics, 22.06.2019 18:30, ayoismeisalex

Both speed and velocity measure how fast something is moving. however, since speed is not a it does not require a(n question 6 options: a) quantity , unit b) magnitude, unit c) scalar, direction d) vector, direction

Answers: 2

continue

Physics, 22.06.2019 23:20, pr47723

Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above

Answers: 2

continue

Physics, 23.06.2019 00:30, maloynegen7681

Madison lives near the ocean. she’s formed a hypothesis that increased concentrations of salt in the air speeds the corrosion of certain metals. if madison plans to test this hypothesis, she will have to deal with the following variables in her experiment: dependent variable: independent variable: one possible confounding variable:

Answers: 1

continue

Do you know the correct answer?

Karen has a mass of 57.9 kg as she rides the up escalator at woodley park station of the washington...