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a 5-kilogram block is fastened to a vertical spring that has aspring constant of 1000 newtons per meter a 3-kilogram
an electric heater used to boil small amounts of water consists of a 15-omega coil that is immersed directly in the
a car is normally capable of an acceleration of 3ms2 if it is towing a trailer with half as much mass asthe car itself
a person who is 15 m tall throws a ball horizontally with a speed of 42 ms what is the speed of the ball the moment
two springs with spring constants k1 and k2are put together end-to-end let x1 be the amount by which the first spring
a 070-kg disk with a rotational inertia given by mr22 is free torotate on a fixed horizontal axis suspended from the
a certain mass when hung from a certainspring causes the spring to stretch by an amount h compared to its equilibrium
a 3440-kg spacecraft is in a circular orbit a distance1850 km above the surface of mars how much work must the
a 120 v potential difference is applied to a space heater whoseresistance is 12 omega when hot a at what rateis
at 0 degreees c the volume of a gas maintained at normalatmospheric pressure is 546 cm3 a how manycm3 will the volume
a wire is formed so as to make a circular loop connecting two long straight sections as shown in the figure below if
review conceptua lexample 8 before solving this problem suppose unpolarized light of intensity 251 wm2 falls on the
a certain kind of glass has an index of refraction of 1650 for blue light of wavelength 420 nm and an index of 1615for
an electron is moving at a speed of 08 multiplied by 104 msin a circular path of radius of 19 cm inside a solenoid the
a uniform rope of mass m and length l hangs from a ceiling a show that the speed of a transverse wave on the rope is a
a current of 100 ma is maintained in a single circular loop with a circumference of 120 m a magnetic field of 0880 t is
light of frequency 60 x 1014 hertz strikes a glassair boundary at an angle of incidence theta1 the ray is
equal amounts of heat are added to equal masses of iron andsilver at the same initial temperaturea which metal will
in the figure below a battery of potential difference v 13 v is connected to a resistive strip of resistancer 70
a rectangular sample of a metal is 38 cm wide and 600 microm thick when it carries a 30 acurrent and is placed in a 08
a wagon is rolling forward on level ground friction is negligiblethe person sitting in the wagon is holding a rock the
four identical charges 20 muc eachare brought from infinity and fixed to a straight line the chargesare located 040 m
the 600-n ball shown is suspended on a string ab and rests againsta frictionless vertical wall the string makes an
a 25-kg cart is rolling along a frictionless horizontaltrack towards a 15-kg cart that is held initially at rest