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a steel cable with total length 25 m and mass 120 kg is connected to two poles the tension in the cable is 3097 n and
a 78 g bullet moves horizontally with speed of 200 ms and embeds in a 17 kg block resting on a horizontal surface
a pipe 028 meters long and capped at one end exists in a room where the speed of sound is 350 ms determine the three
a wooden block of mass m 9 kg starts from rest on an inclined plane sloped at an angle theta from the horizontal the
two mountain climbers are working their way up a glacier when one falls into a crevasse figure below the icy slope
a 40-cm-diameter parallel-plate capacitor has a 054 mm gap what is the displacement current in the capacitor if the
a wire bearing current of 125 a crosses a region in which there is a uniform b field in the y direction the wire is
you drop a 289-g silver figure of a polar bear into the 251-g aluminum cup of a well-insulated calorimeter containing
a base on planet x fires a missile toward an oncoming space fighter the missiles speed according to the base is 080 c
an ice bag containing 0degc ice is much more effective in absorbing heat than one containing the same amount of 0degc
imagine holding the above plastic block under water when released what is the upward acceleration of the block use g
a string with a mass m 500 g and a length l 700 m has one end attached to a wall the other end is draped over a small
using a 677-nm wavelength laser you form the diffraction pattern of a 0115-mm wide slit on a screen you measure on the
rod cells in the retina of the eye detect light using a photopigment called rhodopsin suppose that 211 ev is the lowest
a 200 g toy car is placed on a narrow 66-cm-diameter track with wheel grooves that keep the car going in a circle the
a pendulum of length 20m with a bob of mass 1kg is hanging vertically it is given an impulsive kick with a hammer that
you perceive the sound of a siren to have a higher frequency when the ambulance is approaching you than when it is
consider a concave mirror with a focal length of 1554 cma find the image distance when the object distance is 1554 cm
the image of a crayon appears to be 215 cm behind the surface of a convex mirror and is 239 cm tall the mirrors focal
compare and contrast propeller driven performance to jet performance in an aircraft if you were designing an aircraft
the intensity of sunlight on the upper atmosphere of the earth is approximately 1400m2 the distance of the earth from
when ethanol empirical formula c2h6o burns it combines with oxygen and forms carbon dioxide and water which of the
a disk of radius1m and to mass 2 kg is suspended from a point on its circmfrences where it free to rotate the value of
one string of a guitar is 75 cm long the mass of the string is 8g what tension must you tune the string to if it is to
what are inertial reference frames and what are some exampleswhat are characteristics of proper time displayed time