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A 1.75 kg block slides on a rough, horizontal surface. The blockhits a spring with a speed of 1.86 m/s and compresses it a distanceof 12.1 cm before coming to rest. If the coefficient of kineticfriction between the block and the surface is μk =0.592, what is the force constant of the spring?
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.95 V, What emf and current are induced in the square coil
A puck slides on a surface for 5.6 m before it stops. If it was moving at a velocity of 15 m/s and has a mass of 1.2 kg, what is the force of friction exerted on the puck
The four tires of an automobile are inflated to a gauge pressure of 2.04E+5 Pa. Determine the weight of the automobile
a spherical body of mass m and charge q moves through a viscous medium at a constant speed a q ex under the influence
An airfoil is being tested at an altitude of 34000 ft, standard atmosphere, and a speed of 600 knots. At a specific point "A.'' the pressure is measured to be at eighty-seven percent (87%) of the free tream pressure. Determine the local velocity a..
question strontium sr with a mass number of 90 and an atomic number of 38 decays by beta emission. identify the product
A hammer taps on the end of a 4.00-m-long metal bar at room temperature. What is the speed of sound in this metal
1 for an experiment a laser which emits light at a single wavelength a monochromatic source was used. how would the
A 2.71 g sample of KCl from the chemistry stockroom is found to be radioactive, and it is decaying at a constant rate of 4490 Bq. Calculate the half-life of this nuclide
A spacecraft orbits an unknown planet at a distance of 5.2 x 10^7 m from its center. The period of its orbit is 52 hours. What is the mass of the planet
A child and sled with a combined mass of 48 kg slide down a snow-covered (and frictionless) hill. Find the kinetic energy at the top of the hill
a 70.9 kg boy and a 43.2 kg girl both wearing skates face each other at rest on a skating rink the boy pushes the girl
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