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A tuning fork generates sound waves by a frequency of 248 Hz. The waves travel in opposite directions along a hallway, are reflected by walls, and return. The hallway is 46.0 m long and the tuning fork is located 14.0 m from one end. What is the phase dissimilarity between the reflected waves when they meet at the tuning fork? The speed of sound in air is 343 m/s.
A dolphin locatedin sea water at a temperature of 25°C emits a sound directedtoward the bottom of the ocean 200 mbelow. How much time passes before it hears an echo
Determine the moment of inertia for three children weighing 57.0 lb, 42.0 lb and 78 lb sitting at different points on the edge of a rotating merry-go-round, which has a radius of 12 ft.
A 35 mm camera using a standard 50.0 mm lens is focused on a 1.80 m tall person who is standing 3.25 m from the lens. What is the height of the flower%u2019s image on the film
A heavy flywheel rotating on itscentral axis is slowing down because of friction in its bearings. find its rotational speed at the end of the second minute
How much energy transfer as the reason of a temperature difference was there from the stove into the system consisting of the water plus the pan.
Describe the basic concept of the Atwood's machine. What is the net applied force? What is the mass to which this net force is applied
A circle of rope of total mass 1kg and radius 1m is spinning at angular velocity 2.5 rad/sec about an axis through the center of the circle
A 5cm object is 30 cm in front of the converging lens with a focal length of 15 cm. calculate the image height
An open plastic soda bottle with an opening diameter of 3.0 cm is placed on a table. A uniform 1.95-T magnetic field directed upward and oriented 29º from vertical encompasses the bottle. What is the total magnetic flux through the plastic of the ..
A student is trying to decide what to wear. His bedroom is at 17.0°C. His skin temperature is 36.0°C, Find the net energy loss from his body by radiation in 10.7 min
In a traveling electromagnetic wave, the electric field is represented mathematically asE = E0 sin[(2.0 × 1010 s-1)t - (5.3 × 101 m-1)x], What is the frequency of the wave
An individual is nearsighted; his near point is 16.0 cm and his far point is 47.0 cm. What lens power is needed to correct his nearsightedness
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