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A bat can detect very small objects, such as an insect whose length is approximately equal to one wavelenth of the sound the bat makes. If a bat emits chirps at a frequency of 60.0Hz and the speed of sound in air is 340m/s, what is the smallest insect the bat can detect?
In the figure, suppose that the separation between speakers A and B is 5.90 m and the speakers are vibrating in phase. They are playing identical 110-Hz tones, and the speed of sound is 343 m/s.
A particular guitar string is supposed to vibrate at 206 Hz, but itis measured to actually vibrate at 210 Hz. By what percent should the tension in the string be changed to get the frequency to the correct value?
a 55 kg man stands still in an elevator moving with a constant speed of 2.0ms.aif the down going elevator comes to rest
A 4.60 kg block of ice at 0°C is added to an insulated container partially filled with 10.6 kg of water at 15.0°C. Find the mass of the ice that was melted
an astronomical telescope is used to project a real image of the moon onto a screen 32 cm from an ocular of 6 cm focal
A 1.2 kg mass attached to a spring oscillates with amplitude of 6.3 cm and a frequency of 1.1 Hz. What is its energy of motion.
A 16.5 kg gold bar at 26.0°C is placed in a large, insulated 0.800 kg glass container at 15.0°C with 2.00 kg of water at 25.0°C
A 40.0-N crate starting at rest slides down a rough 6.00-m-long ramp, inclined at 30.0° with the horizontal. What is the speed of the crate at the bottom of the incline
a 0.47 kg object connected to a light spring with a force constant of 22.0 nm oscillates on a frictionless horizontal
A chain consisting of five links, each of mass 0.120 kg, is lifted vertically with a constant acceleration of a = 4.3 m/s2. Find the magnitude of this force
For a temperature increase of ?T1, a certain amount of an ideal gas requires 30 J when heated at constant volume, How much work is done by the gas in the second situation
Estimate the average force exerted by a shot-putter on a 7.0-kg shot if the shot is moved through a distance of 2.4m
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