Physics, 23.02.2020 07:25 keisha71

As light shines from air to another medium, i = 42.0Â°. The light bends toward the normal and refracts at 38.0° What is
the index of refraction?

Answers: 2

Show answers

Another question on Physics

Physics, 22.06.2019 20:00

Positive ions differ from neutral atoms in that

Answers: 3

Answer

Physics, 23.06.2019 12:30

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. in a survey conducted in an office, 60% of the sample respondents agreed that employees should have flexible working hours. if the margin of error is ±2%, the expected population proportion that wants flexible working hours is between __% and __%

Answers: 1

Answer

Physics, 23.06.2019 13:10

The momentum of a car travelinv in a straight line at 20 m/s is 24,500kg·m/s. what is the cars mass?

Answers: 1

Answer

Physics, 23.06.2019 16:00

Acommon procedure for measuring the velocity of an airstream involves the insertion of an electrically heated wire (called a hot-wire anemometer) into the airflow, with the axis of the wire oriented perpendicular to the flow direction. the electrical energy dissipated in the wire is assumed to be transferred to the air by forced convection. hence, for a prescribed electrical power, the temperature of the wire depends on the convection coefficient, which, in turn, depends on the velocity of the air. consider a wire of length l = 20 mm and diameter d = 0.5 mm, for which a calibration of the form v = 6.25 ă— 10â’5 h2 has been determined. the velocity v and the convection coefficient h have units of m/s and w/m2 â‹… k, respectively. in an application involving air at a temperature of tâž = 25â°c, the surface temperature of the anemometer is maintained at ts = 75â°c with a voltage drop of 5 v and an electric current of 0.1 a. what is the velocity of the air?

Answers: 1

Answer

You know the right answer?

As light shines from air to another medium, i = 42.0Â°. The light bends toward the normal and refrac...

Questions