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A grappling hook, attached to a 1.5-m rope, is whirled in acircle that lies in the vertical plane. The lowest point on thiscircle is at the ground level. The hook is whired at a constantrate of three revolutions per second. In the absence of airresistance, to what maximum height can the hook be cast?
A mortar* crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action. How far down the hill does the shell strike
Your Industry has just developed a new sports drink that is in a container which will keep it cool for up to 6 hours. Develop a marketing plan for this product and then write a 3 page paper describing how you would market the product.
A 5.6cm diameter horizontal pipe gradually narrows to 2.9cm. When water flows through this pipe at a certain rate, What is the volume rate of flow
A 1,030-kg car is pulling a 285-kg trailer. Together, the car and trailer have an acceleration of 2.00 m/s2 in the positive x-direction. determine the force exerted by the trailer on the car
A 12.0-V battery produces 180 mA when it's across a 50.0 ? load. Find the potential difference across the battery's terminals
Two beams of 1keV neutrons intersect at an angle of 30o. One beam has a neutron density of 1×106 neutrons/cm3. The other beam has a neutron density of 3×106 neutrons/cm3
After walking across a dry carpet, there's a potential difference of 4600V between your hand and the doorknob. How much charge was transferred
Two small metallic spheres, each of mass m = 0.212 g, are suspended as pendulums by light strings of length L as shown in the figure below. The spheres are given the same electric charge of 7.9 nC, and they come to equilibrium when each string is ..
An object with a mass of 1.60kg is at rest on a horizontal, frictionless surface of a rink. What are the positions and speed of the object st the end of that time
Select all true statements about electromagnetic waves.
a typical sedan ( like corolla Toyota) has unloaded mass of 1.2x10^3 kg. Determine the effective spring constant "k" for the suspension system for critical damping
An empty 13461 kg coal car is coasting on a level track at 6.7 m/s. Suddenly 4761 kg of coal is dumped into it from a chute directly above it. Find the final speed of the car
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