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48 g of ice at -10oC is added to 150 g glass filled with 250 g of water at 20oC. At what temperature will the mixture reach equilibrium?
The position of an object as a function of time is r? =(3.2t+ 0.90 t2)i^+(1.7t? 1.2 t2)j^m, Find the object's magnitude of the acceleration and What is the direction of the acceleration
An isotope of phosphorus called P-32 is radioactive. It decays with half life of 14.3 days with the emission of beta particle. A 1.0 m?Ci source of P-32 is implanted in a tumor where it would deliver radiation dose of 28.6 Gy.
Suppose that a simple pendulum consists of a small 61 g bob at the end of a cord of negligible mass. find the pendulums maximum kinetic energy
When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.39 m. Compute the horizontal distance the ball would travel if the same spring were aimed 28.0 deg from the horizontal.
A racer starts her car from rest and accelerates at 10m/s2 for a distance of 400m (1/4mi)
A sample of wood from an archaeological excavation is dated by using a mass spectrometer to measure the fraction of 14C atoms. What is the wood's age
A 30-meter steel tape is correct at a temperature of 20.0(C). The distance between two points, What is the true distance between the points
Young's modulus of nylon is 3.7 × 109 N/m2. A force of 6.0 × 105 N is applied to a 1.5-m length of nylon of cross sectional area 0.25 m squared
Two heat reservoirs at temperatures 190°C and 60°C, respectively, are brought into thermal contact, What is the change in the entropy of the two-reservoir system
In the winter sport of curling, players give a 20kg stone a push across a sheet of ice. How much force does the curler exert on the stone
A novice skier, starting from rest, slides down a frictionless 35 degree incline whose vertical height is 185m. How fast is she going when she reaches the bottom.
For saving energy, bicycling and walking are far more efficient means of transportation than is travel by automobile. For example, when riding at 11.0 mi/h, Find the fuel economy in equivalent miles per gallon for a person walking
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