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A person sitting in an enclosed train car, moving at constant velocity, throws a ball straight up into the air in her reference frame.
(a) Where does the ball land? What is your answer if the car
(b) Accelerates
(c) Decelerates
(d) Rounds a curve
(e) Moves with constant velocity but is open to the air?
For light that originates within a liquid and strikes the liquid/air interface, What is Brewster's angle for this light
A particular engine has a power output of 4.00 kW and an efficiency of 23.0%. Assume the engine expels 7000 J of energy in each cycle. Find the energy absorbed in each cycle
One end of a 0.23-m copper rod with across-sectional area of 1.10 10-4 m2 is driven into thecenter of a sphere of ice at 0° C (radius = 0.14 m). The portion of the rod that is embedded inthe ice is also at 0° C.
From the top of a 40.0m high cliff, two rocks are simultaneously thrown. One is thrown upwards at 20.0m/s, the other is thrown downwards at 8.0 m/s. How far apart are the two rocks after 1.5 seconds?
The amplitude of a periodic wave is described by theequation Ao cos4 (kx - wt). find the Fourier spectrum of this wave
A uniform 1.9-kg rod that is 0.78 m long is suspended at rest from the ceiling by two springs, one at each end. Find the angle that the rod makes with the horizontal
The time-varying current in an LC circuit where C = 11.5?F is given by i(t) = (1.30 A) sin (1230t), where t is in seconds.
Two identical spring and mass oscillators are set in motion in perpendicular directions. The masses are each 4.0 kg and the spring constants are 196 N/m. Compute the angular frequency and the period of the oscillators.
a 2.0 nc charge is placed on the x-axis at x=-3.0cm another 2.0nc charge is placed on the x-axis at x=3.0cm, What is the potential at the origin
Suppose a tank contains 624 m3 of neon (Ne) at an absolute pressure of 1.01 105 Pa. What is the increase in the internal energy of the neon
You create a plot and the linear trend is y = 2.45 x + 0.132. Let's say you measure Work to be 2.56 J. What is the Position value
A child of mass 30 kg stands at the edge of a merry-go-round of mass 130 kg and radius 2.3 m, and both are initially at rest. How far does the child walk as measured relative to the merry-go-round
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