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A uniform bar of metal, 0.40 m long, with a diameter of 2.0 cm, has a mass of 1.1 kg. A 1.5 MHz longitudinal wave is propagated along the length of the bar. A wave compressin travels the length of the bar in 0.12 ms. Find the wavelength of the longitudinal wave in the metal, in mm.
An object with total mass mtotal = 16.7 kg is sitting at rest when it explodes into three pieces. What is the magnitude of the final momentum of the system
A uniformly charged conducting sphere of 1.5 m diameter has a surface charge density of 11 µC/m2. Find the net charge in coulombs on the sphere
Andy is waiting at the signal. As soon as the light turns green, he accelerates his car at a uniform rate of 8.00 meters/second2. What is the displacement of Andy's car
a block mass 15.92kg supported by a vertical massless cable is initially at rest. The block is then pulled upward with a constant acceleration of 2.11m/s^2. What is the tension in the cable
A3.50kg object is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of24.0N is required to hold the object at rest when it is pulled 0.200 m from its equilibrium position.
Calculate the maximum current density in a lead wire of diameter 4 mm at a temperature of 4.2K if the wire is to remain superconducting. The relevant values for lead are Tc= 7.19k and Bc =6.39 x104 A/m . (note that the magnetic field in the wire is g..
A horizontal beam of electrons initially moving at 4.1 107 m/s is deflected vertically by the vertical electric field between oppositely charged parallel plates.
Suppose a 65 kg person stands at the edge of a 6.5 m diameter merry-go-round turntable that is mounted on frictionless bearings and has a moment of inertia of 1850 kg m2. Calculate the angular velocity of the turntable
Jason is practicing his tennis stroke by hitting balls against a wall. The ball leaves his racquet at a height of 60 cm above the ground at an angle of 80' with respect to the vertical. Is ball on its way-up or down when the ball strikes the wall?
In an experiment, a 1.5 kg lab cart moving to the right at 0.080 m/s collides with a 0.5kg lab cart moving to the right at 1.3 m/s. How fast is the 0.5 kg lab cart moving after the collision
An electron passes through a point 3.01 cm from a long straight wire as it moves at 35.3% of the speed of light perpendicularly toward the wire. Find the magnitude of the electron\'s acceleration at that point
A 34.0kg crate is initially moving with a velocity that has magnitude 3.70m/s in a direction 37.0 %u2218west of north. How much work must be done on the crate
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