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A 0.30 kg mass is suspended on a string. In equilibrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest.
(a) Calculate the period of oscillation.
(b) Calculate the total energy of the system.
The primary winding of a transformer has 1200 turns, and is connected to 120 V A.C. (r.m.s. value). The secondary has a 25 W load resistor, Continuing, how many turns are in the secondary winding
Calculate the velocity of the object for an elapsed time.
A hockey player strikes a 166 g puck, accelerating it from rest to 48 m/s. If the hockey stick is in contact with the puck for 2.5 ms, what is the average force applied by the stick
A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of 81.0 m/s at ground level. What is its maximum altitude
It's possible to estimate the percentage of fat in the body by measuring the resistance of the upper leg rather than the upper arm, What are the fractions of muscle and fat in the leg
A straight, stiff wire of length 1.00 m and mass 21g is suspended in a magnetic field B = 0.58T. The wire is connected to an emf. How much current must flow in the wire and in what direction so that the wire is suspended and the tension in the sup..
If a beam is incident normal (perpendicular to the surface) to a plane mirror, what is the angle of reflections
Consider a 9.5-mm-diameter wire made from copper (mass density 8.9 g/cc, resistivity 1.7E-8 ohm-m). What is the electric field (in V/m) in the wire
A loudspeaker of mass 23-{rm kg} is suspended a distance of h = 1.80- {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.10- {rm m}. What is the tension T in each of cables.
A 1100 car traveling at a speed of 40 skids to a halt on wet concrete where = 0.50. How long are the skid marks.
A certain engine can exert 75,000 kg m/sec/sec of force. Assuming that all the force is used to accelerate the vehicle on which the engine is mounted, how fast would the vehicle accelerate assuming that it masses 5,000 kg? Neglect friction/air res..
A double prism is made by joining two thin glass prisms of different refractive index such as crown glass and flint glass, Determine the prism angle of the crown prism
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