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a wild horse starts from rest and runs in a straight line 29deg north of west after 36 s of running in this direction
a spaceship moving relative to an observer with a speed of 70c shines a beam of light in the forward direction directly
a cubical box is 75m on a sidea what are the dimensions of the box as measured by an observer moving with a speed of
how much heat will be released when a 100 gram iron meteor moving by speed of 10 kms falls to the surface of the
a surveyor is using a magnetic compass 71 m below a power line in which there is a steady current of 85 a what is the
in a uniform circular motion the a acceleration is parallel to the velocity bacceleration is vertical while the
to walk on water all you require is a pair of water-walking boots shaped like boats if each boot is 28 cm high and 33
a ray of light is traveling in glass and strikes a glassliquid interface the angle of incidence is 560deg and the index
a push on a 1-kg brick accelerates it neglecting friction to equally accelerate a 10-kg brick one would have to push
someone standing at the edge of a cliff throws one ball straight up and another ball straight down at the same initial
a slit with a width 010 mm is located 11 m from a screen if the light with lambda 600 nm is passed during this slit
think a michelson interferometer operated by light from a sodium lamp with lambdana 589 nm suppose the interferometer
a space traveler moving at a speed of 056c by respect to the earth makes a trip to a distant star that is stationary
a 222 kg iceboat like a boat on skates glides with initially velocity 333 ms northward across a frozen lake where m
the potential difference among a pair of oppositely charged parallel plates is 367 va if the spacing between the plates
platinum has a work purpose of 64 ev radiation by wavelength 150 nm and intensity 13 wm2 is directed at a platinum
potassium has a work function of 221 ev what is the maximum kinetic energy of electrons escaping from a sample of
a light ray enters a glass slab at point a at incident angle 741 degree and then undergoes total internal reflection at
if a heater supplies 18times106 jh to a room50 m times 52mtimes30 m containing air at 20degc and 10 atm by how much
an air puck of mass 029 kg is tied to a string and allowed to revolve in a circle of radius 14 m on a frictionless
a 610-omega resistor is connected in parallel with a 1180-omegaresistor this parallel group is linked in series with
the tension in a string by a linear mass density of 000100 kgm is 0490 n what is the frequency of a sinusoidal wave on
the lowest string on a certain acoustic guitar is 0582m in length under a tension of 653n the string has a resonant
the human eye can detect light by an intensity as low as about10ndash9 wm2 a typical large galaxy such as our own milky
a certain microwave oven produces microwaves of frequency 2450 mhz with a power of 500 w how long must it take to heat