Physics, 21.07.2019 18:30 dylan102247
What is the difference between am radio waves and fm radio waves? a-am waves travel short distances along the earth’s surface; fm waves travel farther. b-an am wave varies in amplitude; an fm wave varies in frequency. c-fm waves are better reflected by particles in the earth’s atmosphere. d-an fm wave varies in amplitude; an am wave varies in frequency.
Answers: 2
Physics, 21.06.2019 22:00
In a wind tunnel the speed changes as the cross sectional area of the tunnel changes. if the speed in a 6' x 6' square test section is 100 mph, what was the speed upstream of the test section where the tunnel measured 20' x 20'? use conservation of mass and assume incompressible flow. conservation of mass requires that as the flow moves through a path or a duct the product of the density, velocity and cross sectional area must remain constant; i.e., that ova-constant. a model is being tested in a wind tunnel at a speed of 100 mph if the flow in the test section is at sea level standard conditions, what is the pressure at the model's stagnation point? (a) the tunnel speed is being measured by a pitot-static tube connected to a u- tube manometer. what is the reading on that manometer in inches of water? (b) at one point on the model a pressure of 2058 psf is measured. what is the local airspeed at that point?
Answers: 2
Physics, 22.06.2019 00:00
Astate of matter all that has define volume and can flow is a(n)
Answers: 3
Physics, 22.06.2019 03:00
Ahot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. compute the velocity of the sandbag at 0.250 s after its release.
Answers: 2
Physics, 22.06.2019 06:00
Juan created a chart to him study for a test. which headings best complete the chart? x: transparent objects y: opaque objects x: opaque objects y: transparent objects x: high frequency waves y: low frequency waves x: low frequency waves y: high frequency waves
Answers: 3
What is the difference between am radio waves and fm radio waves? a-am waves travel short distances...
Mathematics, 17.04.2021 21:50
English, 17.04.2021 21:50
Mathematics, 17.04.2021 21:50
Spanish, 17.04.2021 21:50
Social Studies, 17.04.2021 21:50
Mathematics, 17.04.2021 21:50