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Diagnostic ultrasound of frequency 3.03 MHz is used to examine tumors in soft tissue. (a) What is the wavelength in air of such a sound wave? (b) If the speed of sound in tissue is 1340 m/s, what is the wavelength of this wave in tissue? (Take the speed of sound in air to be 343 m/s.)
a concave mirror has a focal length of 15.0 cm. An object is placed 18.5 cm in front of the mirror. How tall is the object placed in front of the mirror
A car is traveling counterclockwise along a circular bend in the road with a radius of 200m, What is the magnitude of the cars acceleration
Two metal balls are hung from strings. The first ball, 0.09 kg, is pulled to the side and released so that it strikes the second ball with a speed of 1.62 m/s. What is the mass of the second ball
Let B = 5.10 m at 60°. Let vector C have the same magnitude as vector A and a direction angle greater than that of vector A by 25°. Find the magnitude and direction of vector A
A cylindrical container with a cross-sectional area of 66.2 holds a fluid of density 816 kg/m3, and bottom of the container the pressure is 118 kPa. What is the depth of fluid.
Suppose that a 1.00 cm3 box in the shape of a cube is perfectly evacuated, except for a single particle of mass 1.23 10-3 g. Find the temperature inside the box
Write a nuclear reaction for the neutron-induced fission of U-235 to produce Te-137 and Zr-87 How many neutrons are produced in the reaction
What is the direction of the current - by changing the magnetic field - center of a conducting wire loop in a horizontal plane with the north end of the magnet toward the loop.
A 1,216-kg car drives through a turn with radius 42 m. The coefficient of static friction is 0.9 and the coefficient of kinetic friction is 0.52. find the maximum speed (constant) at which the car can negotiate the turn
A tennis player hits a ball 2.0 m above the ground. The ball leaves his racquet with a speed of 23.0 m/s at an angle 5.5 degrees above the horizontal. By how much does the ball clear the net
Two narrow slits 0.204 mm apart are illuminated by light of wavelength 580. nm. The light falls on a screen 1.48 m away from the slits. What is the angular seperation between adjacent maxima
A guitar string produces 4 beats per second when sounded with a 350-Hz tuning fork and 9 beats per second when sounded with a 355-Hz tuning fork. What is the vibrational frequency of the string
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