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On a hot summer day, the temperature of air in Arizona reaches 113°F. Find what is the speed of sound in air at this temperature? (The speed of sound at 0°C is 331 m/s. Use the conversion 0°C = 273 K as necessary.)
_____________m/s
A 240kg block with mass density of 1200kg/m^3 was accidentally dropped into water and sink. What force should be applied to the block to pull it out of water
A particle moves with velocity v' in the x'y' plane of the rocket frame in a direction that makes an angle phi' with the x'-axis. Discover the angle phi that the velocity vector of this particle makes with the x-axis of the laboratory frame.
When on the ground, Ian's weight is measured to be 646 N. When Ian is on an elevator, his apparent weight is 743 N. What is the net force on the system
A series RCL circuit includes a resistance of 291 ?, an inductive reactance of 685 ?, and a capacitive reactance of 409 ?. What is the voltage of the generator
calculate the work done by a person pulling a 50kg sled, at constant velocity, along the snow at an angle of 50 degrees from vertical for 5m
You are called as an expert witness in the trial of a traffic violation. The facts are these: A driver slammed on his brakes and came to a stop with constant acceleration, How fast was he going when he hit his brakes
A machine is designed to perform a given amount of work in a given amount of time. Find the power of the second machine
An antifreeze solution is made by mixing ethylene glycol (? = 1116 kg/m3) with water. Suppose the specific gravity of such a solution is 1.06. determine the volume percentage of ethylene glycol in the solution
A technician wraps wire around a tube of length 40 cm having a diameter of 7.8 cm. Find the self-inductance of this solenoid
You are standing on a sheet of ice that covers the football stadium parking lot in Buffalo; there is negligible friction between your feet and the ice. If you catch the ball, with what speed do you and the ball move afterwards
In coming to a stop, a car leaves skid marks 92m lng on thehighway. Assuming a deceleration of 7.00 m/s^2 estimate the speed of the car just before braking
A hydrogen atom has a radius of about 0.05 nm. estimate the electron's kinetic energy in three dimensions.
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