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Consider a ball that picks up a speed 20m/sec each second when it rolls from 50m/sec velocity down a frictionless inclined plane. If the ball takes 5 seconds to reach the bottom, calculate its speed (final) at the bottom of the incline.
A 2200 kilogram truck traveling north at 44 km/h turns east and accelerates to 54 km/h. Determine what is the change in the truck kinetic energy
A 8150 kg sailboat is moving through the waters of the Atlantic. Initially, the boat is traveling at 30 mph, 17 degrees East of North. What is the force of the wind acting on the boat
What is the magnitude of the force exerted on the ship by the artillery shell?
A small object moves at constant speed in a horizontal circle of radius 0.210 m. If the object makes two complete revolutions in one second, What is the magnitude of the acceleration of the object
A hanging magnesium wire with diameter0.13 cm is initially 2.0 m long. When a 28kg mass is hung from it, the wire stretches an amount 1.03 cm. A mole of magnesium has a mass of 24 grams, and its density is 1.74 g/cm3.
This can lead to adverse decisions on product costing and pricing. To address this issue, some authors have suggested using the Activity Based Costing method." Do you agree with the above statement? Discuss and give relevant examples to support you..
A keg of beer is covered with a wet towel. Imagine that the keg gains energy from its surroundings at a rate of 20 W. At what rate in grams per second must water evaporate from a towel placed over the keg to cool the keg at the same rate that energ..
two positive point charges. each of which has a charge of 3.5x10-9c are located at y0.80m and y - 0.80m. find the
a mass-spring system has bm wnaught5 where b is the damping constant and wnaught the natural frequency.how does its
A VW Beetle goes from 0 to 102 mi/h with an acceleration of +6.59 m/s2. A top-fuel dragster can go from 0 to 102 mi/h in 1.52 s. What is the acceleration (in m/s2) of the dragster
The wavelength of violet light is about 430 nanometers, or 4.30*10-7 m. The frequency of the violet light reflected from a metal surface and the frequency of the vibrating electron that produces it are the same.What is this frequency?
In a certain time, light travels 4.88 km in a vacuum. During the same time, light travels only 3.19 km in a liquid. What is the refractive index of the liquid
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