Thursday
December 5, 2013

# Posts by JEFF

Total # Posts: 533

math
Carlos hiked 1 and 3/4 miles along a nature trail to a fork in the trial. He than hiked 2 and 1/2 along a path that led to a waterfall. When carlos reached the waterfall, how far had he hiked altogether?

physics
AM radio signals are electromagnetic waves transmitted between frequencies of 550 kHz and 1600 kHz. Find the range of wavelengths for these signals. largest ___m smallest___m

Math
A simple dartboard has three areas the main board has a radius of 9 inches there is a circle with a radius of 5 inches ans the bullseye has a radius of 3 inches What is the proability of a random dart landing inside the bullseye Round to the nearest 1000th

thank you!

find the speed of sound (in m/s) at -35°C at 1 atm pressure in dry air

physics
Explain the Doppler Effect?

science
2. An electric fan having a radius of 0.5 m is running on HIGH. After the LOW button is pressed, the angular speed of the fan decreases to 83.8 rad/s in 17.5 s. the deceleration is 42.0 rad/s2. Determine a) The initial angular speed of the fan b) the linear speed of a point on...

math
solve each triangle. A=45,a=24,b=13

Chemistry
Empirical formula 12.67 aluminum, 19.73 nitrogen, 67.60 oxygen

chemistry
complete KH2PO4(aq)+KOH(aq)

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