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coherent microwaves of wavelength 500 centimeter enter a tall narrow window in a building otherwise essentially opaque
the steering wheel of a car has a radius of 014 m while the steering wheel of a truck has a radius of 033 m the similar
an ice skater rotating at 530 rads with her arms extended has a moment of inertia of 225 kg m2 if her arms are pulled
a meter stick is on a pivot stand with the pivot placed at the 60 centimeter mark the mass of the stick itself is 200 g
amateur radio operators often refer to their radio waves by wavelength what are the estimated frequencies of the 160-m
at the local playground a 16 kilogram child sits on the end of a horizontal teeter-totter 15 meter from the pivot point
a lawnmower engine with an efficiency of 017 rejects 5400 j of heat every sec find the magnitude of the work that the
citizens band cb radio uses radio waves with frequencies near 27 mhz what are the wavelengths of these waves and how
a 02 kilogram plastic cart and a 20 kilogram lead cart can both roll without friction on a horizontal surface same
a beam of light in air strikes a glass lab at common incidence the glass slab has an index of refraction of 150 a about
400 g block attached to the end of an ideal spring horizontal with force constant k10 km undergoes simple harmonic
the maximum speed of a 31 kilogram mass attached to a spring is 068 ms and the maximum force exerted on the mass is 11
a 526-kg skater is standing at rest in front of a wall by pushing against the wall she propels herself backward with a
an object is placed 168 centimeter from a first converging lens of focal length 106 centimeter a second converging lens
a concave shaving mirror has a radius of curvature of 283 centimeter it is positioned thus that the upright image of a
water flows straight down from an open faucet the cross-sectional area of the faucet is 190 x10-4 m2 and the speed of
two solid blocks of identical size are submerged in water one block is aluminum and the other is lead upon find which
a 00815 kilogram ice cube at 0 degc is dropped into a styrofoam cup holding 0349 kg of water at 131 degcfind the final
a 0700kilogram ball is on the end of a rope that is 130 meter in length the rope and ball are attached to a pole and
a piece of glass has a temperature of 800 degc liquid that has a temperature of 390 degc is poured over the glass
an 861 kilogram block of ice at 0degc is sliding on a rough horizontal ice house floor also at 0degc at 154ms assume
a copper calorimeter can with mass 0169 kilogram contains 0201 kilogram of water and 290times10-2 kilogram of ice in
a particle is located at position r 3mi 4mj and the force acting on the particle is f 5ni 7n ja evaluate what is the
a model rocket is constructed with a motor that can supply a total impulse of 360 nmiddots the mass of the rocket is
assuming the earths magnetic field averages about 05010-4 t near the surface of the earth estimation the total energy