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(a) Find the fundamental frequency and second harmonic if the tension in the wire is increased to 112 N. (Assume the wire doesn't stretch or break.)
(b) Using a sound speed of 338 m/s, find the wavelengths of the sound waves produced.
A candle is held 6.0 cm from the surface of a reflecting ball, and its image appears three-quarters of its actual size. What is the diameter of the ball
Monochromatic light of wavelength 500 nm is incident normally on a diffraction grating. how many TOTAL number of maxima can be seen
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 7.50 m/s at an angle of 25.0° below the horizontal. It strikes the ground 5.00 s later. (a) How far horizontally from the base of the building does..
A photon of wavelength 0.87671 nm strikes a free electron that is initially at rest. What is the speed of the recoil electron after the collision
There are two identical, positively charged conducting spheres fixed in space. The spheres are 45.4 cm apart, find the initial charge on each sphere
A uniform magnetic field of magnitude 1.00 T is directed perpendicular to the plane of a rectangular loop having dimensions 8.1 cm by 10 cm
A 20 cm radius air duct is used to replenish the air of a room 9.2 m multiplied by 5.5 m multiplied by 5.0 m every 10 min. How fast does air flow in the duct
A rod (length = 80 cm) with a rectangular cross section (1.5 mm x 2.0 mm) has a resistance of 0.20 ohms. What is the resistivity of the material used to make the rod
12 Gallons per minute of water flows through a heater and must be raised from 20 to 90 Celcius. Calulate the rate of heat supplied
A lady is pulling her luggage that has a mass of 24 kg. What is the total power exerted on the luggage by the lady
The lighter ball is pulled away to a 60 degrees circular angle with the vertical and released. Illustrate what is the speed of the lighter ball before impact?
Without friction, and in the absence of external forces, the sum of the potential and kinetic energies of a body is constant. More power is required while slowly lifting a box than while lifting it up quickly. Energy is required to do work. Work cann..
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