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The well-fed ants of the Fourth North Creek Ant Colony maintain and adhere to a straight trail along the ground between the nearby picnic table and the hole leading to their underground nest. In the colony's folklore this trail has been known since ancient times as the x-axis. One member of the colony, returning to the nest after quenching its thirst with a serious portion of a tasty beverage dripping from the picnic table, is observed first at position xi = 9.63 m on the trail. Then it is seen staggering back and forth along the trail, eventually stopping for a nap at position xf = 8.05 m exactly 82.3 s later. Find the ant's average velocity during this time interval.
consider two parallel-plate capacitors c1 and c2 that are connected in parallel. the capacitors are identical except
An electronic flash attachment for a camera produces a flash by using the energy stored in a 860-mu F capacitor. Between flashes, the capacitor recharges through a resistor whose resistance is chosen so the capacitor recharges with a time constant..
the observer is positioned so that the far edge of the bottom of the empty glass is just visible. when the glass is
A football player runs the pattern given in the drawing by the three displacement vectors A, B, and C. find the angle q that the resultant vector makes with the east direction
At an outdoor market, a bunch of bananas attached to the bottom of a vertical spring of force constant 16.0 N/m, What is the weight of the bananas in newtons
Two concrete spans of a 190 m long bridge are placed end to end so that no room is allowed for expansion. what is the height y to which the spans rise when they buckle
A siren has a frequency of 906 Hz when it and an observer are both at rest. The observer then starts to move and finds that the frequency he hears is 1239 Hz. What is the seed of the obsrver
Part A. At what rate does the Sun radiate energy, given that it's essentially a spherical blackbody with radius 6.96x108m and surface temperature 5800 K? Express your answer with the appropriate units.
A narrow beam of ultrasonic waves reflects off the liver tumor illustrated in the figure below. The speed of the wave is 8.4% less in the liver than in the surrounding medium. Decide the depth of the tumor.
It takes 20 turns to drive a screw completely into a block of wood. Because the friction force among the wood and the screw is proportional to the contact area among the wood and screw, the torque required for turning the screw increases linearly by ..
Most of the galaxies in the universe are observed to be moving away from Earth. Suppose a particular galaxy emits orange light with a frequency of 5.000 \times 10^{14} {\rm Hz}. If the galaxy is receding from Earth with a speed of 3725{\rm km/s} , wh..
An object starts from rest and undergoes uniform acceleration. During the first second it travels 5.0 m. How far will it travel during the third second
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