Physics, 05.12.2019 03:31, Anonymouslizard
1. the index of refraction for air is approximately 1.00, and for quartz it's about 1.50. a light beam in air strikes the surface of the quartz at an angle of 30° with the normal. when it enters the quartz it is refracted. calculate this approximate angle of refraction.
a. 8 degrees
b. 13 degrees
c. 19 degrees
d. 60 degrees
2. a light beam in air strikes the surface of water at an angle of 26° with the normal. when it enters the water it bends towards the normal and makes an angle of 19° with it. the velocity of light in water is approximately 225,000 km/s. what is the approximate velocity of light in air?
a. 200,000 km/s
b. 300,000 km/s
c. 400,000 km/s
d. 500,000 km/s
Answers: 2
Physics, 21.06.2019 18:30, Rusven
An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball
Answers: 1
Physics, 22.06.2019 03:10, jazprincezz7606
Aphysical change is a change in the size, shape,, or stafe of matter true or false
Answers: 1
Physics, 22.06.2019 04:00, katieleeisaacs8368
Ametal ball with a mass of 0.028 kg is dropped from rest at a height of 1.0 meters above the ground. assuming the energy in the ball is conserved, how much kinetic energy will the ball have when it is 0.5 meters above the ground?
Answers: 1
1. the index of refraction for air is approximately 1.00, and for quartz it's about 1.50. a light be...
Mathematics, 03.09.2021 05:50
Mathematics, 03.09.2021 05:50
History, 03.09.2021 05:50
Biology, 03.09.2021 05:50
Computers and Technology, 03.09.2021 05:50
Mathematics, 03.09.2021 05:50
Mathematics, 03.09.2021 05:50