subject
Engineering, 24.12.2019 23:31 corvo556

Aflint glass plate (n = 1.66) rests on the bottom of an aquarium tank. the plate is 9.00 cm thick (vertical dimension) and is covered with a layer of water (n = 1.33) 19.0 cm deep. calculate the apparent thickness of the plate as viewed from straight above the water. (assume nearly normal incidence.)

ansver
Answers: 3

Another question on Engineering

question
Engineering, 04.07.2019 18:10
If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79
Answers: 1
question
Engineering, 04.07.2019 18:10
Condition monitoring is a major component of. (clo4) a)- predictive maintenance. b)-preventive maintenance c)-proactive maintenance d)-reactive maintenance.
Answers: 1
question
Engineering, 04.07.2019 18:20
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
Answers: 3
question
Engineering, 04.07.2019 19:10
Tom is having a problem with his washing machine. he notices that the machine vibrates violently at a frequency of 1500 rpm due to an unknown rotating unbalance. the machine is mounted on 4 springs each having a stiffness of 10 kn/m. tom wishes to add an undamped vibration absorber attached by a spring under the machine the machine working frequency ranges between 800 rpm to 2000 rpm and its total mass while loaded is assumed to be 80 kg a) what should be the mass of the absorber added to the machine so that the natural frequency falls outside the working range? b) after a first trial of an absorber using a mass of 35 kg, the amplitude of the oscillation was found to be 10 cm. what is the value of the rotating unbalance? c) using me-3.5 kg.m, find the optimal absorber (by minimizing its mass). what would be the amplitude of the oscillation of the absorber?
Answers: 3
You know the right answer?
Aflint glass plate (n = 1.66) rests on the bottom of an aquarium tank. the plate is 9.00 cm thick (v...
Questions
question
Mathematics, 09.12.2020 21:50
question
Mathematics, 09.12.2020 21:50
question
Medicine, 09.12.2020 21:50
question
Mathematics, 09.12.2020 21:50
Questions on the website: 13722363