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Bats can detect small objects such as insects that are of a size on the order of a wavelength. If bats emit a chirp at a frequency of 50 kHz and the speed of sound waves in air is 330 m/s, determine the smallest size insect they can detect?
Find theangular speed about the polar axis, as well as the translationalspeed and acceleration of a point on the earth’s surface at alatitude of 45°N. How do these values compare with the correspondingvalues for a point on the equator? (The radius of..
What is the natural frequency of a LC circuit with L = 20 mH and C = 800 F? The capacitor is initially charged to 12.0 V
Oil having a density of 931kg/m3 floats on water. How far below the interface between the two liquids is the bottom of the block
Two small plastic balls hang from threads of negligible mass. Each ball has a mass of 0.180g and a charge of magnitude q. Find the tension in each of the threads
Three 3.0 uC charges are at the three corners of an square of side0.50 m. The last corner is occupied by a -3.0 uC charge. Find the electric field at the center of the square.
1. on which 110 planes of bcc iron can a dislocation with a burgers vector a211-1 move?.2. strain hardening is
Determine the current density, resistance and electric for the copper wire, if the wire is 10 m long
The magnetic field inside a superconducting solenoid is 5.80 T. The solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. Determine the magnetic energy density in the field
A wind turbine is initially spinning at a constant angular speed.As the wind's strength gradually increases, What is the initial angular velocity of the turbine
Consider NH3 vapor acting as a van der Waals gas with coefficients a = 4.169 atm-L2-mol-2 and b = 0.0371 L-mol-1. How much heat must be added to 50.0 g of the gas so that it experiences no change in internal energy as it undergoes isothermal reversib..
24.0g of copper pellets are removed from a 300 ? C oven and immediately dropped into 120mL of water at 24.0 ? C in an insulated cup. What will the new water temperature be
A low-friction cart of mass 5.0 kg is attached to the spring, the spring is stretched 1.5 m from its equilibrium length, What is the velocity of the cart at this position
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