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a 750- car stopped at an intersection is rear-ended by a 1730- truck moving with a speed of 160 if the car was in
the wave function for a wave on a taut string is yx t 0360 sin8t 3x 4 where x and y are in meters and t is in
a grinding wheel is in the form of a uniform solid disk of radius 690 cm and mass 190 kg it starts from rest and
a current of 100 amperes is maintained in a simple circuit with a total resistance of 300 ohms how much heat is
a spherical planet has twice the mass and twice the radius of the earth if a man weighs 810 n on earth what would his
a 30uf capacitor initially charged to 30uc is discharged through a 29kohms resistor how long does it take to reduce the
a new event has been proposed for the winter olympics an athlete will sprint 100 m starting from rest then leap onto a
a real battery is not just an emf we can model a real 15v battery as a 15v emf in series with a resistor known as the
a power plant that uses the temperature gradient of the ocean has been proposed the system is to operate between 208oc
the filament of a light bulb has a temperature of 320e3 degc and radiates 40 watts of power the emissivity of the
which one of the following lists is a correct representation of electromagnetic waves from longer wavelength to shorter
due to a tune-up the efficiency of an automobile engine increases by 350 for an input heat of 1260 j how much more
how far from the center of the earth must you go so that your weight is half of that at the surface of the
in the olympiad of 700 bce athletes competing in the standing long jump used handheld weights called halters to
if a space probe weighs 33200 n on the surface of earth what will be the mass of the probe on the surface of
a standing wave pattern is created on a string with mass density 000035 kgm a wave generator with frequency f 62 hz
in exercise physiology studies it is sometimes important to determine the location of a persons center of gravity this
a wheel 150 m in diameter lies in a vertical plane and rotates with a constant angular acceleration of 430 rads2 the
basilisk lizards can run across the top of a water surface with each step a lizard first slaps its foot against the
the two masses in the atwoods machine shown in the figure have an initial speed of 020 and is moving upward how high
a type of transmission line for electromagnetic waves consists of two parallel conducting plates assumed infinite in
an object of mass 22 kg is moving in the negative x direction at a velocity of 2 ms it experiences the force shown
each of the following objects has a radius of 0188 m and a mass of 271 kg and each rotates about an axis through its
nbspa 445g oscillator has a speed of 955cms when its displacement is 300cm and 615cms when its displacement is
a potters wheel -- a thick stone disk of radius 0500 m and mass 120 kg -- is freely rotating at 500 revmin the potter