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A standard 100 Watt (120 Volt) light bulb contains an 8.00 centimeter long tungsten filament. The high-temperature resistivity of tungsten is 9.0 ×107 Ωm.
Part A Compute what is the diameter of the filament?
A cube made of steel 0.300 meters on a side is suspended from a scale until it is completely immersed in fresh water
A beam of particles is directed at a 0.017-kg tumor. There are 2.1x10^10 particles per second reaching the tumor, Find the biologically equivalent dose given to the tumor
In the days before compact discs and MP3 players (ancient history!), music was recorded in scratches in the surface of vinyl-coated disks called records. Find the centripetal acceleration of a point on the edge of the record
A strong weightless rope has a mass m hanging from the middle of it, as shown. The tension force on each rope is 25 N, and the rope droops at an angle of 20.0°. How much mass is hanging from the rope?
Optimums Prime is flying straight up at 72m/s when he accidentally drops his mega-ray blaster and it falls 81 m to the ground below. Compute how long it takes for his mega-ray blaster to hit the ground.
A basketball player makes a jump shot. The 0.700 kg ball is released at a height of 2.00 m above the floor with a speed of 7.70 m/s. The ball goes through the net 3.10 m above the floor at a speed of 4.30 m/s. What isthe work done on the ball by a..
assume that the area of contact between an automobile tire and the road is a rectangle with dimensions 17.5 cm cross
a collimated gamma ray beam consists of equal numbers of 0.1 mev and 1.0 mev photons. if the beam enters a 5 cm thick
Two sources produce electromagnetic waves. What is the energy of a photon from source B
An undamped 1.42-kg horizontal spring oscillator has a spring constant of 29.9 N/m. While oscillating, it is found to have a speed of 2.53 m/s as it passes through its equilibrium positio
An astronaut is taking a trip to a planet 20 c · years away from Earth. For the astronaut to age only 16 years through the journey how fast must she travel?
Light of wavelength 720nm falls on two slits and produces an interference pattern in which the fourth-order fringe is 46mm, What is the separation of the two slits
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