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A 3.40 kg block starts from rest andslides down a frictionless incline, dropping a vertical distance of3.30 m, before compressing a spring of force constant 2.54 104 N/m. Find the maximum compression of the spring.
A student is running at her top speed of 5.2m/s to catch a bus, which is stopped at the bus stop. For what time does she have to run in that case
Suppose a planet is discovered that has the same amount of mass in a given volume as the Earth, but has radius 1/5 . Calculate the acceleration due to gravity on this planet
Two cars have a head on collision. Both were traveling at 42m/s toward each other. Car A has a mass of 722 KG. Car B has a mass of 848KG. After impact, car A is moving backward at 2 m/s. What is car B's velocity after impact.
The potential difference between a storm cloudand the ground is 100 million volts. what is the change of potential energy of the charge
One piece of 50 g ice at 0C is added to m grams of water at 25C. The system is insulated from outside and the exchange of heat is limited to ice and water only. find the total change in entropy
A 9.0-g piece of Styrofoam carries a net charge of -.65mC, What is the charge per unit area on the plastic sheet
water is moving with a speed of 2.3 ms through a perfectly sealed long pipe with a cross sectional area of 5 cm2. the
A cardinal (Richmondena cardinalis) of mass 4×10-2 kg and a baseball of mass 0.143 kg have the same kinetic energy. What is the ratio of the cardinal's magnitude p_c of momentum to the magnitude p_b of the baseball's momentum.
A pump is required to lift a mass of 780kg of water per minute from a well of depth 13.7m and eject it with a speed of 17.9m/s, What must be the power output of the pump
A cube of solid steel has a volume of 1.01m^3 at 21.4 deg Celsius. What temp change is required to produce a 104cm^3 increase in volume of the cube?
A metal cube with sides of length a is moving at velocityv0y^ across a uniform magnetic fieldB0z^. The cube is orientated so that four ofits edges are parallel to its direction of motion (i.e., the normalvector of two faces are parallel to the direct..
A string with length L = 0.80 m and linear density µ = 2.5 g/m is under tension F = 4.0 N. The string is fixed at each end and when driven at the frequency of the n = 3 harmonic, a standing wave with amplitude A = 0.50 cm is produced.
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