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Determine what frequency of sound traveling in air at 20°C has a wavelength equal to 1.8 meter, the average height of a person?
A long straight thin round conductor carries a linearcharge density λ=7 μC/m. What is the electric field in the region outside the conductor.
a person standing at the edge of a cliff throws a stone horizontally over the edge with a speed of vi 32.4 ms. the
White light is shone on a very thin layer ofalcohol (n=1.36), and above the alcohol layer, interference maxima for two wavelengths (and no other in between) are seen: onevioletwavelength of410nm, and oneredwavelength of670nm. What is the thickness..
A 1000kg ar accelerates from rest to 25.0m/s in 4.20 s.Ignoring frictional forces. what is the average power( inhorsepower) delivered by the engine
A loop of area 0.100 m^2 is rotating at 3600 rpm (revolutions per minute) with an axis of rotation perpendicular to a 0.20 T magnetic field. what is the maximum voltage induced in the loop
If the coil forms a closed circuit with a series resistance of 70.0 ?, what is the instantaneous power being dissipated in the resistor when the plane of the coil makes an angle of 39.0° with the magnetic field
What impulse Ft should be supplied to bring the ball to rest? If the ball is stopped in 0.03 s, what is the average force of the ball on the catcher's hand.
The steel I-beam in the drawing has a weight of 8.39 × 103 N, What is the tension in each cable attached to its ends
a car moving with constant acceleration covered the distance between two points 60 m apart in 6 s. its speed as it
A person can change the volume of his body by taking air into his lungs. The amount of change can be determined by weighing the person under water. Find the change in body volume
After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 52.0 cm. The explorer finds that the pendulum completes 93.0 full swing cycles in a time of127 s. What is the value of the acceleration of gravity on this ..
A 30-kg child rides on a circus Ferriswheel that takes her around a vertical circular path with a radiusof 20 m every 22 s. What is the magnitude of the resultant force on the child
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