A 120 kg box on a horizontal surface is pushed with an
A 12.0 kg box on a horizontal surface is pushed with an initial speed of 1.6 m/s. It has a friction force of 20N how many seconds will it take for the box to come to a stop.
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Two skaters, of mass mA = 60kg and mB = 90 kg, are skating toward each other at the same speed v = 4 m/s. What is the speed of skater A following the collision
A plastic bar fit snugly between rigid supports at room temp. (68)but with no initial stress. When the temperature of a bar israised to 160 F the compressive stress on an inclined plane pqbecomes 1700 psi.
A copper bar with a rectangular cross section is held withoutstress between rigid supports. Subsequently, the temperatureof the bar is raised 50 C. Determine the stresses on allfaces of the elements A and B
In a head-on collision, a car stops in 0.15s from a speed of 19m/s. What force is applied to the driver by his seat belt during that fraction of a second
A 12.0 kg box on a horizontal surface is pushed with an initial speed of 1.6 m/s. It has a friction force of 20N how many seconds will it take for the box to come to a stop
The mass of Mercury is 0.0550 times that of earth, and its radius is 0.380 times that of earth. Calculate the average density of Mercury
You are working on a new Web site for Cruzes, Inc. The Web site is aimed at providing travel information to consumers interested in cruises.
An object of length 3.00 cm is inside a plastic block with index of refraction 1.40. find where is the object relative to its image
According to the photon energy formula, tripling the frequencyof the radiation from a monochromatic source will change the energycontent of the individually radiated photons by what factor
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