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An explorer is caught in a whiteout (in which the snowfall is so thick that the ground cannot be distinguished from the sky) while returning to base camp. He was supposed to travel due north for 4.8 km, but when the snow clears, he discovers that he actually traveled 7.8 km at 48° north of due east.
(a) How far must he now travel to reach base camp?
(b) In what direction must he travel?
Suppose a monatomic ideal gas is contained within a vertical cylinder that is fitted with a movable piston. Through what distance does the piston drop
You toss a ball straight up in the air. Immediately after you let go of it, what forces are acting on the ball
a bug sits on the edge of a spinning wheel of radius .2m which is rotating counter clockwise at a rate of 6 rad/sec and slowing down at a rate of 4 rad/s^2. what is the magnitude of the tangential acceleration
Yellow light propagates through vacuum at a speed of 3 x 10^5 km/sec, with a wavelength of 590 nm. What is the frequency in vacuum
In exercising, a weight lifter loses 0.124 kg of water through evaporation, find the change in the internal energy of the weight lifter
An ac generator with a frequency of 1.24 kHz and an rms voltage of 24.2V is connected in series with a 2.20 kOmega resistor and a 330 mH inductor. What is the average power consumed by this circuit
A 2.00 kg frictionless block is attached to a horizontal spring as shown. At t = 0, the position x = 0.225 m, and the velocity is 4.25 m/s toward the right in the positive x direction. Position x as a function of t is: x = A*cos(?t ) , where A ..
An eastbound subway train accelerates from rest at 1.22 m/s2 along a straight track. How far apart are the trains when the eastbound subway train is traveling at the same speed as the westbound train
A metal conducting sphere of radius 15cm has a net charge of 30nC and is located with its center at the origin. what is the electric potential at the origin
A meter stick moving in a direction parallel to its length appears to be only 40cm long to an observer. what is the meter stick's speed relative to the observer
A cord is attached to a cart that can slide along a frictionless horizontal rail aligned along an x-axis. The left end of the cord is pulled over a pulley, a negligible mass and friction and at cord height h [m], so the car slides from x1 to x2. Duri..
A basketball player is balancing a spinning basketball on the tip of his finger. The angular displacement of the ball, in radians is
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