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Surgeons can remove brain tumors by using a cavitron ultrasonic surgical aspirator, which produces sound waves of frequency 23.7 kHz. Estimate the wavelength of these waves in air?
q1. a 52.0 skateboarder wants to just make it to the upper edge of a quarter pipe a track that is one-quarter of a
two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 448 N and F2 = 350 N. What is the resultant of these two forces
A photon of wavelength 0.72462 nm strikes a free electron that is at first at rest. The photon is scattered straight backward. What is the speed of the recoil electron after the collision?
A snow skier, starting from rest, goes downhill for 5.00s and reaches a level spot of smooth snow. What is average velocity on level spot
A projectile is launched from ground level with an initial speed of 52.2 m/s. Find the launch angle (the angle the initial velocity vector is above the horizontal) such that the maximum height of the projectile is equal to its horizontal range. (I..
At Earth location, the intensity of sunlight is 1.5 kW/m2. by how much would Earth's mass increase in 1 day
In a game of billiards, the cue ball is traveling eastward when it strikes a second ball that is initially at rest. After the collision, the cue ball moves at 4.79 m/s, What was the speed of the cue ball prior to the collision
Water flows at the rate of 3.02 kg/s through a hose with a diameter of 3.08 cm. What is the speed of water in this hose, what is the speed of water in the nozzle
A pond with a flat bottom has a surface area of714m2 and a depth of 2.8m. On a warm day, the surface water is at temperature of 25°C, while the bottom of the pond is at 12°C.
The surface temperature of Star Y is 8100 K and the power output of the star is 5.30E+27 W. what will the new power output be
A disk rotates about its central axis starting from rest and accelerates with constant angular acceleration. find the number of radians from rest until the time the disk reaches the 5.5 rad/s angular speed
A person's body is producing energy internally due to metabolic processes. What is the temperature of the coldest room in which this person could stand and not experience a drop in body temperature
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