Entries by Hannah Wangui

A metal bowl with a weight of 1.45 N

October 18, 2019 in /by

Question A metal bowl with a weight of 1.45 N is placed in a larger kitchen container filled with castor oil. How much castor oil must the bowl displace in order to float? For reference, the mass density of castor oil is about 961 g/liter and its weight density is about 9.42 N/liter. Please give your answer in liters.   Looking for a Similar Assignment? Order now and Get […]

 

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A sonic depth gauge is placed 5.8 m above the ground

October 18, 2019 in /by

Question A sonic depth gauge is placed 5.8 m above the ground. An ultrasound pulse sent downward reflects off snow and reaches the device 0.030 seconds after it was emitted. The air temperature is −20°C. How far (in m) is the surface of the snow from the device? (Round your answer to at least three significant figures.)  m How deep (in […]

 

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A baseball fan sitting in the “cheap seats” is d = 156 m

October 18, 2019 in /by

Question A baseball fan sitting in the “cheap seats” is d = 156 m  from home plate (see the figure below). How much time elapses between the instant the fan sees a batter hit the ball and the moment the fan hears the sound? (Assume the speed of sound is 344 m/s, and the vertical distance can be ignored.)   Looking […]

 

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Find the air temperature (in K).

October 18, 2019 in /by

Question In a student laboratory exercise, the wavelength of a 44,300 Hz ultrasound wave is measured to be 0.795 cm. Find the air temperature (in K).   Looking for a Similar Assignment? Order now and Get 10% Discount! Use Coupon Code “Newclient”

 

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