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A bat is moving about in a cave, navigating via ultrasonic beeps. Assume that the sound emission frequency of the bat is 30,000 Hz. During one fast swoop directly toward a flat wall surface, the bat is moving with a speed of 10 m/s. The speed of sound in air is 340 m/s.
If you had sound-detecting equipment mounted on the wall (as part of a research project you are doing for the course BATS101), find the frequency recorded in the detector.
What frequency does the bat hear reflected off the wall?
Measure how energy is conserved in a system. Measuring the velocity and position of a cart on an inclined track in its path up and back down a dynamics track
Light is incident on an equilateral glass prism at a 45.0 angle to one face. Calculate the angle at which light emerges from the opposite face
The buoyant force is described by Archimedes principle as: an object, when located in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object. Explain how will you measure the volume of the solid objects in this ex..
A 1.0-kg mass is attached to a string wrapped around a shaft of negligible mass and having a 8.0-cm radius. A dumbbell-shaped "flywheel" made from two 0.500-kg masses is attached to one end of the shaft and perpendicular to its axis. The mass is rele..
a plane leaves the airport in galisto and flies 155 at 68.0east of north and then changes direction to fly 270 at
The pulley system is used to lift a 52 kg crate. Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to crate. assume the masses of the chains, pulleys, and ropes are negligible, conclude the forc..
The length and width of a rectangular room are measured to be 3.995 ± 0.005 m and 3.050 ± 0.005 m. Calculate the area of the room
a single slit 820 nm wide is illuminated with light of wavelength 555 nm. what is the angular width of the central
A liquid (ρ = 1.65 g/cm3) flows through twohorizontal sections of tubing joined end to end. Calculate the smaller section's pressure
Two resistors, R1=100 Ω and R2=200 Ω, are connected in parallel across a battery. determine the total current through the battery
how many electrons must be removed from each of two 5.0-kg. copper spheres to make the electric force of repulsion
A mechanism is shown in the following figure. Link ABC has an arc slot with a radius of R =100mm . The center of the arc O1 is on the line BC. The crank OA has a length of 100 mm. It rotates about point O with a constant angular velocity of ω =4 r..
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