Physics, 27.11.2019 20:31 Brightcord9679
Ahighway patrol officer uses a device that measures the speed of vehicles by bouncing radar waves off them and measuring the doppler shift. in one such instance, the outgoing waves had a frequency of 100 ghz and the returning echo had a frequency 15 khz higher. assume the officer is facing in the positive direction. what is the velocity of the vehicle? note that there are two doppler shifts in echoes. be certain not to round off until the end of the problem, because the effect is small.
Answers: 3
Another question on Physics
Physics, 21.06.2019 23:20
From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a.m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?
Answers: 1
Physics, 21.06.2019 23:30
Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work
Answers: 1
Physics, 21.06.2019 23:30
A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?
Answers: 3
Physics, 22.06.2019 12:50
Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom
Answers: 1
You know the right answer?
Ahighway patrol officer uses a device that measures the speed of vehicles by bouncing radar waves of...
Questions
English, 18.09.2019 17:40
Social Studies, 18.09.2019 17:40
History, 18.09.2019 17:50
History, 18.09.2019 17:50
Spanish, 18.09.2019 17:50
Biology, 18.09.2019 17:50
Biology, 18.09.2019 17:50
Mathematics, 18.09.2019 17:50
Biology, 18.09.2019 17:50
