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A silvered sphere is used as a christmas tree ornament has a diameter of 0.08 m. A girl holds the ornament 0.2m from her eye. Where does she see the image of her eye? What is the ratio of the height of this image to the height of her eye? Is the image erect or inverted?
A sled is pulled with a horizontal force of 20 N along a level trail, and the acceleration is found to be 0.35 m/s2. find the coefficient of kinetic friction between the sled and the trail
A spherical Christmas tree ornament is 3.84 cm in diameter. What is the magnification of the image of an object placed 11.1 cm away from the ornament
A wheel is spinning at 46 rad/s when an acceleration of 0.75 rad/s2 is applied. If the acceleration lasts for 140 revolutions, what is the final angular speed
Problem A small mirror is attached to a vertical wall, and it hangs a distance of 1.59 m above the floor. The mirror is facing due east, and a ray of sunlight strikes the mirror early in the morning and then again later in the morning.
A pulsed proton beam is fireat a target each last 45.0ns and there 3.00 X 10^9 protons in each pulse, What is the average pressure on the beam spot during the pulse if the protons are absorbed by the target
You're driving down the highway late one night at 18 m/s when a deer steps onto the road 45m in front of you. What is the maximum speed you could have
Illustrate what is the number of shares to be used in computing basic earnings per share and diluted earnings per share, respectively, for the year ended December 31, 2007?
Your friend's 1.15 g graduation tassel hangs on a string from his rear-view mirror. Find the tension in the string holding the tassel
Use the natural and dual basis vectors to determine the metric tensors g i j and gi j , and the line element, for the coordinate system introduced in Example 2.2. Verify explicitly that the matrices g i j and gi j found for this problem are inverses ..
A 40 turn coil of radius 5.4 cm rotates in a uniform magnetic field having a magnitude of 0.49 T. find the magnitude of the maximum torque exerted on the coil
Suppose a 100m diameter stony (p= 3 g/cm^3) meteroid impacts the Earth with a speed of 20km/s. Assume all kinetic energy goes into the creation of an atmospheric blast wave.
Two balls , one of gold with a mass of 100 kg and one of wood with a mass if 1 kg, are suspended 1 meter apart. find attractive force the wooden ball acting on the gold ball
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