subject
Physics, 14.11.2019 05:31 fowers7187

Aperson climbs from a paris metro station to the street level by walking up a stalled escalator in 96.0 s. it takes 72.0 s to ride the same distance when standing on the escalator when it is operating normally. how long would it take for him to climb from the station to the street by walking up the moving escalator?

ansver
Answers: 3

Another question on Physics

question
Physics, 21.06.2019 23:00
Follow these directions and answer the questions. 1. set up the ripple tank as in previous investigations. 2. bend the rubber tube to form a "concave mirror" and place in the ripple tank. the water level must be below the top of the hose. 3. generate a few straight pulses with the dowel and observe the reflected waves. do the waves focus (come together) upon reflection? can you locate the place where the waves meet? 4. touch the water surface where the waves converged. what happens to the reflected wave? 5. move your finger twice that distance from the hose (2f = c of c, center of the curvature) and touch the water again. does the image (the reflected wave) appear in the same location (c of c)? you may have to experiment before you find the exact location. sometimes it is hard to visualize with the ripple tank because the waves move so quickly. likewise, it is impossible to "see" light waves because they have such small wavelengths and move at the speed of light. however, both are examples of transverse waves and behave in the same way when a parallel wave fronts hit a curved surface.
Answers: 1
question
Physics, 22.06.2019 09:30
On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( ρ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s.t.p.?
Answers: 2
question
Physics, 22.06.2019 16:40
Which are true about beta reactions? there will be more than one answer. a. it has no change b. it doesn't change the mass of the number c. it has a mass of 0.0005 atoms d. it causes transmutation.
Answers: 3
question
Physics, 22.06.2019 21:30
Contrast the force of gravity between these pairs of objects: 1-kg mass and a 2-kg mass that are 1 m apart; a 1-kg mass and a 2-kg mass that are 2 m apart; and two 2=kg masses that are 1 m apart. i dont understand.
Answers: 3
You know the right answer?
Aperson climbs from a paris metro station to the street level by walking up a stalled escalator in 9...
Questions
question
Mathematics, 12.09.2020 01:01
question
Mathematics, 12.09.2020 01:01
question
English, 12.09.2020 01:01
question
Mathematics, 12.09.2020 01:01
question
Mathematics, 12.09.2020 01:01
question
Mathematics, 12.09.2020 01:01
question
Mathematics, 12.09.2020 01:01
question
Mathematics, 12.09.2020 01:01
question
Mathematics, 12.09.2020 01:01
question
Mathematics, 12.09.2020 01:01
question
History, 12.09.2020 01:01
question
Mathematics, 12.09.2020 01:01
question
Mathematics, 12.09.2020 01:01
question
English, 12.09.2020 01:01
question
Mathematics, 12.09.2020 01:01
question
Mathematics, 12.09.2020 01:01
question
English, 12.09.2020 01:01
question
Mathematics, 12.09.2020 01:01
question
Mathematics, 12.09.2020 01:01
question
Mathematics, 12.09.2020 01:01