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The speed of sound does not depend on the loudness or the frequency of sound. The speed of sound in dry air 0 degree celsius is 330 m/s. Explain how temperature and humidity affect the speed of sound.
Sodium carbonate, a base, can be used to standardize an acid. A 0.263 g sample of sodium carbonate requires 28.35 mL of aqueous HCl for titration to the equivalence point. What is the concentration of the HCl? Help?
A heavy copper bus bar is 20.00 cm long and of rectangularcross-section, 1.000 cm x 2.000cm. what is the voltage dropalong its length when it carries 4.000 x 10^3 A
You are using a grating with 1000 lines per millimeter; the angle for the first order maxima is ? = 16°. Find the angle for the second order maxima
A softball of mass 0.200kg that is moving with a speed of 7.0m/s collides head-on and elastically with another ball initially at rest, Calculate the mass of the target ball
A 950kg car is at the top of a 40m -long, 2.5 degree incline. What the first car's speed would have been at the bottom had it not struck the second car
Due to a temperature difference ?T, heat is conducted through a brass plate that is 0.027 m thick. How thick should the steel plate be so that the same amount of heat per second is conducted through it
a microwave oven generates a sound level of 37.3 db when consuming 1.6 kw of power. estimate the fraction of this power
two particles of masses m1 93000 kg and m2 4200 kg are initially at rest an a distance 148.1 km apart. the masses are
A long straight thin round conductor carries a linearcharge density λ=7 μC/m. What is the electric field in the region outside the conductor.
According to the universal law of gravitation the gravitational force on a small mass at the surface of the Earth is proportional to the product of the mass and the mass of the Earth and inversely proportional to the square of the distance between..
A piece of metal weighs 53.6 N in air, 35.0 N in water, and 42.2 N in an unknown metal. What is the density of the unknown liquid
the escape speed starting from the surface of the earth is 11.2 km/s(neglecting any effects of the earth's orbital motion, what would be the escape speed from that planet
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