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An object is solid throughout. When the object is totally submerged in ethyl alcohol, its apparent weight is 15.3 N. When totally submerged in water, its apparent weight is 13.6 N. What is the volume of the object?
a pair of eyeglasses is designed to allow a person with a far-point distance of 2.02m to read a road sign at a distance
q1. on a workday the average decibel level of the busy street is 82 db with 100 cars passing a given point every
On a banked race track, the smallest circular path on which cars can move has a radius of 111 m, while the largest has a radius 153 m, Find the smallest speed at which cars can move on this track without relying on friction
An athlete crosses a 29 m wide river by swimming perpendicular to the water current at a speed of 0.6 m/s relative to the water. How fast is the water flowing relative to the ground
Boat sails at a rate of 5.0 m / s relative to the sea. He is aiming directly north, What will be the direction of the boat
If a mass of 5 g causes a mass-spring system to oscillate with a frequency of 16 Hz, what is the spring constant of the spring
A hiker's trip consists of three segments. Path A is 8.0 km long heading 60degrees north of east. Path B is 7.0km long in a direction due east. Path C is 4.0 km long heading 315 degrees counter clockwise from east.
A student plays around with a 1.0m ruler that can be setup in a stand by means of a knife edge clamp. He puts the knife edge clamp, and the pivot point, at the point where the ruler reads 30 cm. The student realizes this is not a stable position a..
A 3000-kg spacecraft is in a circularorbit 1200 km above the surfaceof Mars. How much work must the spacecraft engines perform to move the spacecraft to a circular orbit that is 4000 km above the surface?
After a shipwreck, a solid steel spoon lies at the bottom of the ocean, 8.00km below the surface. Find the fractional volume change in the spoon due to compression forces
Two blocks are connected by an ideal string that passes over a massless, frictionless pulley. determine the magnitude of the blocks acceleration
An ac generator has a frequency of 4.80 kHz and produces a current of 0.0400 A in a series circuit that contains only a 231 resistor, Obtain the voltage of the generator
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