In an experiment to determine speed
of sound in air, a drum at a point
150m from a vert...
Physics, 14.06.2021 22:10 auviannadority13
In an experiment to determine speed
of sound in air, a drum at a point
150m from a vertical wall was struck
at varying frequency while listening
to the echo. The echo coincides with
the sound from the drum at a time
when to successive strikes were
made within a time of 18.5s.
i. Determine the time taken for
an echo to be heard
ii. Determine the speed of sound
in air at the place
iii. What difference would you
expect if the experiment was
repeated on a colder day?
Answers: 1
Physics, 21.06.2019 19:30
Contrast the force of gravity between these pairs of objects a 1 kg mass and a 2 kg mass that are 1 m apart and two 2 kg masses that are 1 m apart
Answers: 2
Physics, 22.06.2019 01:00
Avehicle has an oil leak that is causing the entire oil pan to be wet, but inspection reveals no exact source after cleaning off the oil residue. technician a says to install a fluorescent dye in the crankcase and operate the engine, then re-inspect for leaks with a special light (black light). technician b says the oil leak may be coming from a source at the top of the engine, such as a valve cover gasket. who is correct?
Answers: 1
Physics, 22.06.2019 14:00
Ascientific blank must be testable and capable of being proven false?
Answers: 1
Physics, 22.06.2019 17:40
Which describes an object in projectile motion? check all that apply.a.gravity acts to pull the object downb.the object moves in a straight path.c.the forward velocity of the object is 0 m/s.d.the object’s inertia carries it forward.e.the path of the object is curved.
Answers: 2
English, 23.06.2019 03:30
Chemistry, 23.06.2019 03:30
History, 23.06.2019 03:30
World Languages, 23.06.2019 03:30
Mathematics, 23.06.2019 03:30
Mathematics, 23.06.2019 03:30
Physics, 23.06.2019 03:30
World Languages, 23.06.2019 03:30
English, 23.06.2019 03:30
Mathematics, 23.06.2019 03:30
Geography, 23.06.2019 03:30