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A "south" magnetic pole of a bar magnet represents
a) The starting point of a magnetic field
b) The ending point of a magnetic field
c) The "exit" point of a magnetic field
d) The "entrance" point of a magnetic field
e) The topic was never in physics book
A drop of water on a countertop reflects light from a flowerheld 3.1 cm directly above it. The flower's diameter is 1.7 cm, andthe diameter of the flower's image is 0.11 cm. What is the focallength of the water drop, assuming that it may be treated a..
A flat sheet of ice (n = 1.309) has a thickness of 2.4cm. It is on top of a flat sheet of crystalline quartz (n= 1.544) that has a thickness of 1.4 cm. Light strikes the ice perpendicularly and travels during it and then through the quartz. In the ti..
AIlya and Anya each can run at the speed of 8.20 and walk at a speed of 4.00. They set off together on a route of length 5. 0. Anya walks half of the distance and runs the other half, while AIlya walks half of the time and runs the other half.
A rubber ball of mass 37.5 g is dropped from a height of 1.80 m onto a floor. Thevelocity of the ball is reversed by the collision with the floor,and the ball rebounds to a height of 1.55m. What impulse was applied to the ball during the collision..
a 0.400 ice puck moving east with a speed of 2.50 has a head-on collision with a 0.900puck initially at rest. what
A mass M1 = 5 kg sits on a table top connected by an ideal rope and pulley with a hanging mass M2 = 1 kg. The coefficient of kinetic friction between the table and M1 is 0.15, and the coefficient of static friction is 0.25. What is the acceleration o..
You have available lenses of focal lengths 2.0 cm, 4.0 cm, 8.0 cm, and 16.0 cm. what is the maximum magnification you could achieve
A city planner is working on the redesign of a hilly portion of a city. An important consideration is how steep the roads can be so that even low-powered cars can get up the hills without slowing down. A particular small car, with a mass of 92..
An originally uncharged 10μF capacitor is charged by a 10 V battery through a resistance R. The capacitor reaches a potential dissimilarity of 4V in a period of 3 s after the charging began. discover the value of R.
a boy is laying on a sled wich is on an ice covered hillinclined at an anlge of 15 degrees if the boy and the sled have acombned mass of 54kg what is the force pulling them down the hill
Aluminum conducts heat twice as well as brass. A brass rod isconnected to an aluminum rod of the same length and radius. what is the temperature at where the two metals meet
A 60·kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 340·N. What is the final speed of the crate
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