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A bat can detect small objects such as an insect whose size is approximately equal to one wavelength of the sound the bat makes. If bats emit a chirp at a frequency of 53 kHz, and the speed of sound in air is 321 m/s, what is the smallest insect a bat can detect?
A generator connected to an RLC circuit has an rms voltage of 140V and an rms current of 32mA, what is the inductive reactance of the circuit
A storage tank 27 m high is filled with pure water, Calculate the magnitude of the net force that acts on a square access hatch at the bottom of the tank that measures 0.6 m by 0.6 m
What is the range of frequency of the light emitted by the hydrogen atom
At t=0, a proton is moving with the speed of 5.5×10^5 m/s at an angle of 30 degrees from the x-axis, as shown in the figure. A magnetic field of magnitude 1.5 T is pointing in the positive y-direction. What would be the y-coordinate of the proton ten..
Two different simple harmonic oscillators have the same natural frequency (f=7.10 Hz) when they are on the surface of the Earth. Calculate the new frequency of the pendulum
A drag racer crosses the finish line of a 304.8 m track with a final speed of 126 m/s. how long would it take to finish the race
What is the amount of the normal force on the charge on the surface in Newtons, when including both the weight of the object and the electric force on it?
An organ pipe is open at both ends. It is producing sound at its fifth harmonic, What is the length of the pipe
The length of a simple pendulum is 0.65 m and the mass of the particle (the "bob") at the end of the cable is 0.26 kg. What is the angular frequency of the motion
The coefficient of static friction between the 3000 lb car's tires and the road is 0.5. Determine the steepest grade the car can drive up at constant speed if car has (a) rear=wheel drive; (b) front-wheel drive; (c) four wheel drive.
Since the vehicles stick together after the collision and take the direction of the large truck (greater momentum), I guessed that the small car would have a greater change in kinetic energy.
Staring from rest, a hoop rolls without slipping down a long ramp. What is its translational speed when it's 5.0 m below its initial height, determine the hoop's translational speed
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