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Sound travels at a speed of V=1539 m/s in water. While underwater a student hears a v= 3.5 kHz whale song. What is the wavelength in meters of the whale song?
Consider a two lens system, where f1=5 cm f2=-4 cm The distance between the lenses is 15 cm. calculate the position of the image from the first lens
A tennis player receives a shot with the ball (0.0600 kg)traveling horizontally at 50.0 m/s and returns the shot with the ball traveling horizontally at38.0 m/s in the opposite direction. What work does the racquet do on the ball
A body is placed on a plane that is incline at an angle of 35degrees to the horizontal, Determine the component of mg parallel to the surface
The aurora is caused when electrons and protons, moving in earth's magnetic field of 5x10^-5 T, collide with molecules of the atmosphere and cause them to glow. What is the radius of the circular orbit for (a) an electron with speed 1.0×10^6 and (b) ..
A car moving at 25m/s approaches a stationary whistle that emits a 350Hz sound. The speed of sound in the air is 343m/s, find the frequency of sound heard by the driver of the car
A person consumes a meal containing 17 kcal. What is the power this meal produces if it is to be "burned off" due to exercise in 6 hours
A turntable has rotational inertia I and is rotating with angular speed w about a frictionless vertical axis. A wad of clay with mass m is tossed onto the turntable and sticks a distance d from the rotation axis. The clay hits horizontally with it..
A vehicle is speeding at 115 km/h on a straight highway when a police car moving at 145 km/h enters the highway from an onramp and starts chasing it.
A 1400 kg block is lifted at a constant speed of 4 cm/s by a steel cable that passes over a massless pulley to a motor-driven winch. What force must be exerted by the cable
A 0.025 kg golf ball moving at 21.0 m/s crashes throughout the window of a house in 2.0 10-4 s. After the crash, ball continues in the same direction with a speed of 10 m/s. assuming the force exerted on the ball by the window was constant, what w..
Object A, which has been charged to + 16nC , is at the origin. Object B, which has been charged to ? 20nC , is at (x,y)=(0.0cm,2.0cm). What is the magnitude of the electric force on object A
Write an assay about tomothynosis and its potential use in clinical mammography
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