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a 200kg crate slides down a 29deg incline at constant speed what is the force of friction between the crate and
consider the model of nerve conduction in myelinated axons presented in the chapter suppose the distance between the
an electron with an initial velocity v0 250times105 ms enters a region 10 cm long where it is electrically accelerated
an object moving to the right at 08c is struck head-on by a photon of wavelength lambda moving to the left the object
moving a charge from point a where the potential is 310 to point b where the potential is 120 takes 45times104 of
a plane is flying horizontally with speed 292 ms at a height 3880m above the ground when a package is dropped from the
a particle starts from the origin at t0 with an initial velocity having an x component of 278 ms and a y component of
suppose you wish to whirl a pail full of water in a vertical circle without spilling any of its contents if your arm is
an artificial satellite is moving in a circular orbit with a speed of 63 kms and a period of 840 min a retarding rocket
you plan to throw stones by using a sling of length 05 m which you whirl over your head suppose you wish to throw a
it costs 26 cents to charge a car battery at a voltage of 12 rm v and a current of 15 rm a for 120 minutes what is the
what is the specific enthalpy of saturated steam at a temperature of 464 degrees f if you have 75 lbs of this steam
a point charge q12 microc is located on the positive y axis at y030 m and an identical charge q2 is at the origin find
the drawing below shows three particles far away from any other objects and located on a straight line the masses of
an airplanes speed across the ground can be affected by the wind when an airplane encounters a crosswind wind at 90deg
a block is projected up a frictionless inclined plane with initial speed v0 850 ms the angle of incline is 277dega
an unknown material has a normal meltingfreezing point of -263deg c and the liquid phase has a specific heat capacity
in and 800 km race one runner runs at a steady110 kmh and another runs at 140 kmh how far from the finish line is the
a proton 16 middot 10 -19 c moves 10 cm on a path in the direction of a uniform electric field of strength 30 nc how
a 043 kg particle moves in an xy plane according to xt - 13 4 t - 3 t3 and yt 26 9 t - 7 t2 with x and y in meters
two blocks each of mass m 370 kg are fastened to the top of an elevator as in the figurea if the elevator has an
a projectile is fired at 349deg above the horizontal any effects due to air resistance are negligible at the highest
a satellite has a mass of 5939 kg and is in a circular orbit 494 times 105 m above the surface of a planet the period
a rifle is aimed horizontally at a target 51m away the bullet hits the target 20cm below the aim point what was the
the motion of a very massive object is hardly affected by what would seem to be a substantial force consider a