Physics
Physics, 14.07.2019 23:30, afolmar2006

When a dvd is played, a laser light hits the surface of the disk and then returns to the detector. which wave phenomenon allows the dvd player to work? a. absorption b. interference c. reflection d. refraction

answer
Answers: 2

Other questions on the subject: Physics

image
Physics, 21.06.2019 18:10, HOTaco554
After the near spacecraft passed mathilde, on several occasions rocket propellant was expelled to adjust the spacecraft's momentum in order to follow a path that would approach the asteroid eros, the final destination for the mission. after getting close to eros, further small adjustments made the momentum just right to give a circular orbit of radius 45 km (45 × 10^3 m) around the asteroid. so much propellant had been used that the final mass of the spacecraft while in circular orbit around eros was only 545 kg. the spacecraft took 1.04 days to make one complete circular orbit around eros. calculate what the mass of eros must be.
Answers: 1
image
Physics, 22.06.2019 08:30, ljwatts25
Pl asaaap ! match the term to the correct description. a type of wave that transfers energy where the particles in the medium move perpendicular to the direction in which the energy is traveling. a type of wave that transfers energy where the particles in the medium move parallel to the direction in which the energy is traveling. movement that is back and forth, like an equal sign = a type of wave that transfers energy where the particles in the medium move in a circle motion while the energy travels left or right. movement that is like a t transfers energy from one location to another 1. wave 2. parallel movement 3. perpendicular movement 4. transverse wave 5. longitudinal wave 6. surface wave
Answers: 1
image
Physics, 22.06.2019 16:00, Christyy1837
What part of the ear is names after tools, such as the hammer and the anvil?
Answers: 1
image
Physics, 22.06.2019 16:30, xxaurorabluexx
An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?
Answers: 1
Do you know the correct answer?
When a dvd is played, a laser light hits the surface of the disk and then returns to the detector. w...

Questions in other subjects:

Konu
Social Studies, 19.09.2020 01:01
Konu
Physics, 19.09.2020 01:01