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A bat moving at 3.4 m/s is chasing a flying insect. The bat emits a 49 kHz chirp and receives back an echo at 49.44 kHz. At what speed is the bat gaining on its prey? Take the speed of sound in air to be 344 m/s.
You are making pesto for your pasta and have a cylindrical measuring cup 10.4cm high made of ordinary glass (?=2.7×10?5(C?)?1), At what temperature will the olive oil start to spill out of the cup
Two equally charged particles, held 22.4 cm apart, are released from rest. The initial acceleration of the first particle is observed to be 4.0 m/s2 and that of the second particle is 6.0 m/s2.
Yoy are presented with a coaxial cable of length L. The inner core has a uniform charge distrubution throughout its radius, Find the Electrostatic Potential in all radial regions
In a series RLC ac circuit, the resistance is 8.7 ohms, the inductance is 21.9 mH, and the capacitance is 14.5 microF. Calculate the maximum current in the circuit
Water has the following thermodynamic constants: (1) specific heat liquid = 4.18 J/g °C, solid = 2.09 J/g °C, gas = 1.89 J/g °C, (2) heat of fusion = 334 J/g, and (3) heat of vaporization = 2257 J/g. how much heat is required to melt the sample
Find out the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 29.0 degrees below the horizontal.
A current of 0.80A flows through a copper wire 0.50mm in diameter, How long is the wire in km
A flashlight bulb with a resistance of 40 ohm is powered with a six volt battery and produces .75W power. obtain the internal resistance of the battery
A plank 2.00 cm thick and 16.6 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the board extends 2.00 m horizontally over the sea below. estimate the shear modulus of the wood
A car started frm rest and accelerated for 5s at 6.00m/s2.Then it stayed at a constant speed for 20 s. It next slowed down at 3m/s2 until it came to a stop? how far did it travel during the first 5 s.
The rotating sprocket tip at the end of the guide bar has a radius of 0.0343 m. Find the angular speed of the sprocket tip
In a certain time, light travels 4.78 km in a vacuum. During the same time, light travels only 2.37 km in a liquid. What is the refractive index of the liquid
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