Physics, 11.07.2019 22:30 TheMixingToad
He inner surface of a cone coated by a reflecting layer forms a conical mirror. a thin incandescent filament is stretched in the cone along its axis aphe minimum angle o of the cone for which the rays emitted by the filament will be reflected from the conical surface not more than once is greater than or equal to 120°. b) ifangle ofcone is less than 120° the rays from the filament will be reflected from the conical surface not more than once c) forany angle of cone multiple reflections of the rays from filament occurs d) lf angle ofcone is less than 120° the rays from the filament will be reflected from the conical surface more than once
Answers: 1
Another question on Physics
Physics, 22.06.2019 04:30
Which of the following is not a characteristic of s waves? a. travel slower than p waves. b. cannot be detected in locations more than 105° from an earthquake’s epicenter. c. travel through solids and liquids. d. only affect coastal regions.
Answers: 2
Physics, 22.06.2019 05:20
Very large accelerations can injure the body, especially if they last for a considerable length of time. one model used to gauge the likelihood of injury is the severity index ( ), defined as =/ . in the expression, is the duration of the accleration, but is not equal to the acceleration. rather, is a dimensionless constant that = the number of multiples of that the acceleration is equal to.in one set of studies of rear-end collisions, a person's velocity increases by 13.7 km/h with an acceleration of 36.0 m/s2 . let the + direction point in the direction the car is traveling. what is the severity index for the collision?
Answers: 1
Physics, 22.06.2019 07:20
If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?
Answers: 3
Physics, 22.06.2019 09:30
Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.
Answers: 1
You know the right answer?
He inner surface of a cone coated by a reflecting layer forms a conical mirror. a thin incandescent...
Questions
Chemistry, 18.03.2021 23:10
Mathematics, 18.03.2021 23:10
Mathematics, 18.03.2021 23:10
Advanced Placement (AP), 18.03.2021 23:10
Computers and Technology, 18.03.2021 23:10
Mathematics, 18.03.2021 23:10
Health, 18.03.2021 23:10
Mathematics, 18.03.2021 23:10
