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a radio antenna broadcasts a 10 mhz radio wave with 29 kwof power assume that the radiation is emitted uniformly in all
a 180 kg block slides on a rough horizontal surface the block hits a spring with a speed of 180 ms and compresses it a
a potters wheel moves uniformly from rest to an angular speed of 023 revs in 350 sa find its angular acceleration in
in example 8-10 mass m1 240 kg is connected to mass m2 180 kg as shown suppose the two masses start from rest and are
geosynchronous satellites orbit the earth at a distance of 4217 times 107 m from the earths center their angular speed
the wiring in the wall of your house to and from an outlet has a total resistance of typically 016 ohm suppose a
light bulbs in series and in parallel two light bulbs have resistances of 500 and 1000 the two light bulbs are
a long solenoid with 928 turnscm and a radius of 785 cm carries a current of 158 ma a current of 508 a exists in a
an inexpensive microscope has a tube length of 120cm and its objective lens is labeled with a magnification of 10x
the figure shows a particle with positive charge q 640 x 10-19 c moving with speed v 813 x 105 ms toward a long
a certain nuclear power plant is capable of producing 13times109 w of electric power during operation of the reactor
liquid water at 453k and 1002 kpa has an internal energy of 762 kjkg and a density of 890 kgm3 a what is the enthalpy
enter question herea 100g on object is suspended from a spring when 40 g are added the soring stretches an additional
a top is a toy that is made to spin on its pointed end by pulling on a string wrapped around the body of the top the
a steel wire having a mass of 350 g and a length of 100 m is fixed at both ends and has a tension of 1010 na find the
the figure below shows a three-particle system with masses m1 25 kg m2 40 kg and m3 90 kg a what are the coordinates
during a solar eclipse the moon earth and sun all lie on the same line with the moon between the earth and the suna
a standard 100 w 120 v lightbulb contains a 940 cm-long tungsten filament the high-temperature resistivity of tungsten
please use your notes book or other source to find a relationship equation that describes the motion of a mass
a 180g air-track glider is attached to a spring the glider is pushed in 124cm and released a student with a stopwatch
a 400-kg mass is placed at 400 300 m and a 600-kg mass is placed at 300 400 m what is the moment of inertia of this
a common flashlight bulb is rated at 0300 a and 300 v the values of the current and voltage under operating conditions
two compact sources of sound oscillate in phase with a frequency of 120 hz where the speed of sound is 340 ms at a
a uniform meter stick has a 450 g mass placed at the 20 cm mark if a pivot is placed at the 425 cm mark and the meter
a 341 kg child rides a ferris wheel whose diameter is 183 m when the ride is turning at a constant rate the childs