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A 2 kg ball moving towards the West with a speed of 10m/s collides with a 4 kg ball moving towards the North with a speed of 3m/s. the two balls stick together and move as one unit after collision. Find the velocity of the combination after collision.
Two parallel rods are each 0.50 m in length. They are attached at their centers to either end of the spring (spring constant = 150 N/m) that is initially neither stretched nor compressed.
A cube of side 8.50cm is placed in a uniform field E=7.50×103 N/C with edges parallel to the field lines, What is the net flux through the cube, What is the flux through the right face
A closed cylindrical tank has a height of 0.77m. The tank is at first filled with air at a pressure of 2.00 atm. Water is pumped into the tank until the air pressure reaches 6.1 atm. The temperature is constant. Find out the height of the compress..
A glass capillary tube with a diameter of 8.5 mm and length 16 cm is filled with a salt solution with a resistivity of 3.4 ?m. What is the resistance?
Assume the speakers are reconnected so that the 440 Hz sounds they emit are accurately out of phase. At what positions (how far should the microphone be moved to the right) are the intensity maximum and minimum now.
A 45kg figure skater is spinning on the toes of her skates at 1.2rev/s . Her arms are outstretched as far as they will go. What is her new rotation frequency, in revolutions per second
A laser beam of wavelength 580nm is incident normally on a transmission grating having 410lines/mm
The heating element of a simple heater consists of a 2.0--long, 0.70--diameter nichrome wire. The heating element of a simple heater consists of a 2.0--long, 0.70--diameter nichrome wire.
Assume that the blocks accelerate as shown with an acceleration of magnitude = 0.250 and that the coefficient of kinetic friction between block 2 and the plane is = 0.400. Find out the mass of block 2, , when = 30.0.
When a surfer rides an ocean wave on her surfboard she is actually riding on. a. a crest that is toppling over. b. a trough of the wave. c. The rest position of the wave. d. A region of rarefaction.
Two capacitors, C1 = 2.0mF and C2 = 7.0mF , are in series, Find the charge stored on the second capacitor
A transformer connected to a 125 V (rms) ac line is to supply 12000 V (rms) for a neon sign. What current rating should the fuse in the primary circuit have
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