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A friend in a spaceship travels past you at a high speed. He tellsyou that his ship is 22 m long and thatthe identical ship you are sitting in is 19 m long.
(a) According to your observations, how long is your ship?
m
(b) According to your observations, how long is his ship?
(c) According to your observations, what is the speed of yourfriend's ship?
c
Cartesian coordinate system is characterized by three orthogonal unit vectors (orts) i, j, and k, which are parallel to the x-, y-, z-axis, respectively. What are the coordinates of these vectors
a positive point charge q1 2.35 times 10-5 c is fixed at the origin of coordinates and a negative point charge q2
Engineers can determine properties of a structure that is modeled as damped spring oscillator-such as a bridge-by applying a driving force to it, What is the oscillator\'s damping constant? (kg/s)
a load of 100lbs is applied to the lower end of a steel rod 3 ftlong and .20in in diameter. how much will the rod stretch
A uniform 1.3-kg rod that is 0.86 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
At what energy does an electron become "relativistic"? Consider electrons with kinetic energies of 50 eV, 50 keV, and 50 MeV. When is it important to use the relativistic formulas
This parallel group is connected in series with a 22.0 Ω resistor. The total combination is connected across a 18.0 V battery. Compute the current delivered to the 130 Ω resistor.
there is a general understanding among the public of the traditional sentencing options available to judges while
Flux and nonconducting shells. A charged particle is suspended at the center of two concentric spherical shells that are very thin , What is the charge of the central particle
The large blade of a helicopter is rotating in a horizontalcircle. The length of the blade is 7.64 m, measured from its tip tothe center of the circle. Find the ratio of the centripetalacceleration at the end of the blade to that which exists at apoi..
A 0.145- kg baseball traveling 36.10 m/s is stopped in 0.143 s by a catcher's mitt. What is the average acceleration of the ball
A 0.117 kg meterstick is supported at its 37.7 cm mark by a string attached to the ceil- ing. A 0.624 kg mass hangs vertically from the 4.04 cm mark. A mass is attached somewhere on the meterstick to keep it horizontal and in both rotational and t..
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