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Solve the all parts of given question:
Question: Diagnostic ultrasound of frequency 3.75 MHz is used to examine tumors in soft tissue.
Part A: What is the wavelength in air of such a sound wave?
Part B: If the speed of sound in tissue is 1320 m/s, what is the wavelength of this wave in tissue? (Take the speed of sound in air to be 343 m/s.)
I need to help to determine the wavelength in air of such a sound wave.
the sled (100kg) rides on a slope, 30 degrees to the horizontal. The coefficient of friction is 0.8. what force is needed move the sled down
q1. a 60 kg circus performer jumps from a 6.2 m height onto a trampoline and stretches it downward 0.36 m. assume that
An alpha particle of mass m = 6.68×10-27 kg, positive charge q = 2e, and initial kinetic energy K = 9.00 MeV is projected, how close to the center of the nucleus is the particle when it comes momentarily to rest
The earth spins in the same sense as it orbits around the sun. find the earth's spin angular velocity about its internal axis
An isolated copper sphere of radius 3.00cm, initially uncharged, is illuminated with ultraviolet light of wavelength 180nm. what charge does the photoelectric effect induce on the sphere
Horseshoe bats (genus Rhinolophus) emit sounds from their nostrils, then listen to the frequency of the sound reflected from their prey to determine the prey's speed. calculate the speed of the insect
A length of 20-gauge copper wire (of diameter 0.8118 mm) is formed into a circular loop with a radius of 25 cm. Find the average electrical power dissipated in the process
Two long parallel wires are 6cm apart and carry currents of 3 and 9amps resepctively in opposite directions
You set up an experiment with two polarizer screens on an optical bench and collect data for the intensity of the light at the detector as you vary the relative angle between the transmission axes of the polarizers. What is intensity of the light s..
a steel guitar string has a tension t a length l and a diameter d. give the multiplicative factor by which the
a 9-v battery is connected across a capacitor of 20 microf through a switch which is initially open. the amount of
A mining lift, with a 80kg cage, should be able to pull up to the surface ten 90kg miners, from a 20m deep well, in 20s. If the gearboxes available have an efficiency of 75%, what should be the power rating of the DC motor used. If the driving gear p..
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