subject
Physics, 18.04.2021 15:50 andrewsaul04

3.9. How long will a boy sitting near the window of a train travelling at 36km/h see a train passing by in the opposite direction with a speed of 18km/h. The length of the slow-moving train is 90 m.​

ansver
Answers: 2

Other questions on the subject: Physics

image
Physics, 21.06.2019 20:30, gunner20115
Need in all of themmm only answer if you know pls
Answers: 2
image
Physics, 22.06.2019 06:20, kimilew
Oxygen undergoes an isentropic expansion from 120 degree c and 280 kpa absolute to 140 kpa absolute. determine the final temperature of the oxygen and the amount of work per kg of o_2 produced in the process if it is adiabatic.
Answers: 1
image
Physics, 23.06.2019 11:00, luckylady
Olympic skier tina maze skis down a steep slope that descends at an angle of 30∘ below the horizontal. the coefficient of sliding friction between her skis and the snow is 0.10. i found maze's acceleration which is 4.1 m/s^2. but how do you determine maze's speed 4.0 s after starting?
Answers: 2
image
Physics, 23.06.2019 15:30, sammimoose6490
7.45 a student is interested in the aerodynamic drag on spheres. she conducts a series of wind tunnel tests on a 10-cm-diameter sphere. the air in the wind tunnel is at 50 â°c and 101.3 kpa. she presents the results of her tests in the form of a correlation, đť’ź = 0.0015v1.92, where đť’ź is the drag force in newtons and v is the velocity in m/s. another student realizes that the results would have been more effectively presented in terms of dimensionless parameters, say, î  1 = f (î  2) = c î  a2 , where î  1 and î  2 are dimensionless parameters and c and a are constants. what are the most appropriate dimensionless parameters (î  1 and î  2) and the corresponding values of c and a? what would be the drag on a 2-cm-diameter sphere placed in a 1-m/s, 20 â°c water stream?
Answers: 1
You know the right answer?
3.9. How long will a boy sitting near the window of a train travelling at 36km/h see a train passing...

Questions in other subjects:

Konu
Engineering, 21.07.2021 17:10
Konu
Mathematics, 21.07.2021 17:10