Physics, 15.07.2019 18:30, alidalostimolo

Acar approaches you at a constant speed, sounding its horn, and you hear a frequency of 76 hz. after the car goes by, you hear a frequency of 65 hz. what is the frequency of the sound emitted by the horn? the speed of sound in the air is 343 m/s.

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 20:50, goldenblobslime

Identify the type of synthetic material used in each object

Answers: 1

continue

Physics, 22.06.2019 09:30, looloo273

Asap i'm in class rn a 1,000-kg car is traveling 20 m/s on a flat stretch of road. it gets to a hill and coasts uphill until it stops. how high up the hill does the car travel? givens: equation: 1/2mv2initial=mghfinal solve for h. plug & chug, label.

Answers: 2

continue

Physics, 22.06.2019 09:40, dakshshberry

Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?

Answers: 2

continue

Physics, 22.06.2019 12:30, lmolder1329

Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.

Answers: 1

continue

Do you know the correct answer?

Acar approaches you at a constant speed, sounding its horn, and you hear a frequency of 76 hz. after...