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Q1. A 2.42 MHz sound wave travels through a pregnant woman's abdomen and is reflected from fetal heart wall of her unborn baby. The heart wall is moving toward the sound receiver as heart beats. The reflected sound is afterwards mixed with the transmitted sound, and 85 beats per second are detected. The speed of sound in body tissue is 1520m/s. compute the speed of the fetal heart wall at the instant this measurement is made.
Q2. The atmosphere of Mars is mostly (molar mass 44.00 under a pressure of 650, which we shall assume remains constant. In many places the temperature varies from 0.0 in summer to - 100 in winter. Over the course of a martian year, what are ranges of the rms speeds of the molecules.
A large cylindrical water tank is mounted on a platform with its central axis vertical. The water level is 3.75 m above the base of the tank, and base is 6.50 m above the ground. A small hole 2.23 mm in diameter has formed in the base of the tank. Bo..
A 75 g, 31 cm long rod hangs vertically on a frictionless, horizontal axle passing through its center. A 12 g ball of clay travelling horizontally at 2.1 m/s hits and sticks to a very bottom tip of the rod.
What is a stopping distance
Classically, the electron cannot pass through the barrier because E
A car moves from a point located 26.0 m from the origin and at an angle of 35.0 from the x-axis to the point located 57.0 m from the origin and at an angle of 60.0 from the x-axis in 2.52 s.
Find out altitude of the airplane
Find out the friction force on the box
Express how unmet basic physiological needs of oxygen, nutrition, temperature, and humidity threaten clients' safety.
How much heat energy can created throughout motion
What would be the time constant in a RC circuit when R = 200 kohms and C = 10mf? 20
A string of 22 identical Christmas tree lights are connected in series to a 125 V source. The string dissipates 52 W. What is the comparable resistance of the light string.
How much time elapses between first splash and second splash
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