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Find the focal length (cm) of a simple magnifier which has a magnification of 5.5. Use 25 cm for the near point. Assume that the image is at infinity. Give the answer to 2 significant figures.
The drawing shows an equilateral triangle, each side of which has a length of 1.59 cm. Point charges are fixed to each corner, Determine the charge qA and q
Neglect air resitance. Find rocket's kinetic energy when the rocket is 1000 km above Earth's surface. Illustrate what is the max heigh that the rocket reaches.
A 27 pound meteorite struck a car, leaving a dent 26cm deep in the trunk. If the meteorite struck the car with a speed of 620m/s, what was the magnitude of its deceleration, assuming it to be constant.
two negative electric charges each with a charge of 8.1 x 10-5 coulombs are fixed at a distance of 1.0 meters from
A commuter train blows its horn as it passes a passenger platform at a constant speed of 35.0 m/s. t is the frequency observed by a person on the platform as the train approaches
A solar concentrating heat exchanger system directs sunlight onto a long,straight pipe. How long is the pipe for steady state, teady flow conditions
Consider a resistor (R=1000 kΩ) and a capacitor (C=1mF) connected in series. Find the maximum charge on the capacitor
In 1967, New Zealander Burt Munro set the world record for an Indian motorcycle, on the Bonneville Salt Flats in Utah, of 183.58 mi/h. how long did it take Burt to complete the course
An %u03B1-particle has a charge of +2e and a mass of 6.64 10-27 kg. It is accelerated from rest through a potential difference that has a value of1.20 106 V, What is the radius of its circular path
At a playground, a 19kg child plays on a slide that drops through a height of 2.3m. The child starts at rest at the top of the slide. What is the childs speed at the bottom of the slide
Coulomb's Law describes the force between two charged objects, What is the magnitude and direction of the electrical force on object 2 due to Object 1
A train at rest emits a sound at a frequency of 1045 Hz. An observer in a car travels away from the sound source at a speed of 37 m/s.What is the frequency heard by the observer . What must be the result have been for the horizontal speed.
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