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a meter stick l 1 meter has a mass of m 0154 kilogram initially it hangs from two short strings one at the 25
three forces acting on an object are given by f1 -200 i 200 jn f2 500i -300jn f3 -450in the object experiences an
evaluate the minimum amount of heat in joules needed to heat 7 kilogram of liquid water from its freezing point to its
if we increase the intensity of a sound wave by a factor of ten thousand obtain how much have we increased the loudness
a coaxial cable consists of a wire of radius 10 millimeter and an outer conducting shell of radius 8 millimeter a 20
a guitar string has a fundamental f500 hertz find the frequency that will set string into resonant
tarzan plans to cross a gorge by swinging in an arc from a hanging vine if his arms are capable of exerting a force of
a roller coaster reaches the top of the steepest hill with a speed of 68 kilometer per hour it then descends the hill
a for the helium-neon laser determine the doppler broadening of the output wavelength 6828 nm at t 293 kmb determine
a solenoid made of superconducting wire has exactly 40 turns per centimeter length and a diameter of 28 centimeter if
a 2200 watt oven is connected to a 240 v source r 262 ohm find how long will it take to bring 150 ml of 23oc water to
a block of mass 30 kilogram slides toward the right on a frictionless surface with v0 75 ms at x 0 meter it comes
a solid cylindrical disk has a radius of 045 meter it is mounted to an axle that is perpendicular to the circular end
a 51 kilogram packing crate is pulled with constant speed across a rough floor with a rope that is at an angle of 435o
electrons have a charge of q -1602 times 10-19 c a student observes a styrofoam cup has a total charge of q -034
a 2 kilogram object moving at 5 ms slides headlong into a spring which is attached to a 3 kilogram object that is
a horizontal spring resting on a frictionless tabletop is stretched 14 centimeter from its unscratched configuration
a rectangular loop of wire carrying a current is perpendicular to a magnetic field the field is uniform in the region
a spherical mirror is polished on both sides when the concave side is used as a mirror the magnification is 27 obtain
a 290 centimeter high object is located 212 centimeter in front of a concave mirror that has a radius of curvature of
the intensity of the light that reaches the photocell in the drawing is 130 wm2 theta 25 degree find what would be the
a trap door of length and width 250 meter is held open at an angle of 65 degree with respect to the floor a rope is
a child of mass 400 kilogram is sitting on a horizontal seesaw at a distance of 19 meter from the supporting axis
evaluate the rotational inertia of a solid iron disk of mass 48 kilogram with a thickness of 395 centimeter and radius
a firecracker is tossed straight up into the air it explodes into three pieces of identical mass just as it reaches the