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1) The bulk modulus of a gas varies with pressure. In the case of the air, the bulk modulus of air is equal to 1.40 times its pressure. the atmospheric pressure at sea level is 1.01 * 105 N/m2. The density of air at sea level is 1.20 kg/m3. For these conditions, what is the speed of sound as it passes through the air?
a .328 m/s
b. 343 m/s
c. 1.70 km/hr
d. 5280 ft/s
A 70.0-kg ice hockey goalie, originally at rest, catches a 0.150-kg hockey puck slapped at him at a velocity of 35.0 m/s. what would their final velocities be in this case
what are some popular voltagecurrentresistance analogies? what are some ways you have learned about or will learn about
Two parallel plates having charges of equal magnitude but oppositesign are separated by 12cm. Each plate has a charge density of 36nC/m2. A proton is released from rest at the positive plate. The potential difference across the plates
A rock is thrown vertically upward with a speed of 14.0 . Exactly 1.00 later, a ball is thrown up vertically along the same path with a speed of 21.0
Consider the Earth and a cloud layer 900 m above the planet to be the plates of a parallel-plate capacitor. what is the maximum charge the cloud can hold
A plane has an airspeed of 200mph . The pilot wishes to reach a destination 500mi due east, but a wind is blowing at 30mph in the direction 40degrees north of east. How long will the trip take
An ideal gas in a container is at a temperature of 78.5°C. What is the average translational kinetic energy of a gas
A dentist uses a spherical mirror to examine a tooth. The tooth is 1.06 cm in front of the mirror, and the image is formed 11.4 cm behind the mirror. Determine the mirror's radius of curvature. _____ cm. Determine the magnification of the image.
A wire coil of 35 turns has a cross-sectional area of 12 cm2. The coil is placed in a uniform field of a large magnet with B = 0.32 T. What is the magnitude of the average emf produced
What is an average power output of the laser. What is the rms value of the electric field in the beam.
A 200 g calorimeter contain 500 g of water at 21 degree Celsius. A 100g of ice at -20 degree Celsius is placed into the calorimeter. find the specific heat of the material of the calorimeter
Three objects with masses, m1 = 6.0 kg, m2 = 10.0 kg, and m3 = 15.0 kg, are attached by strings over frictionless pulleys as indicated. The horizontal surface is frictionless and the system is released from rest. Using energy concepts, find out th..
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