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A copper sphere has a radius of 2.50 m under normal room pressure of 1.0 X 10^5 N/m^2. if we increase thre pressure on this spheer to 10 times the normal room pressure, what is the change in its volume? The bulk modulus for copper is 1.4 X 10^11 Pa.
Two 2.0 cm x 2.0 cm square electrodes, spaced 0.4 mm apart, are connected to a 10 V battery. What is the charge on each electrode
A boulder has a volume of 1 m3 and a mass of 5000 kg. what will be the effective mass of the boulder
A string on a guitar vibrates at 420 Hz. If the tension on the string is 102 N, what is the mass of the string if the portion that vibrates is 63.7 cm long
What is the highest compression of the spring for a perfectly inelastic impact.
A Carnot engine operates with reservoirs at 135°C and 378°C, and 23600 J of heat are transferred into the engine from the hot reservoir during each engine cycle
A 9 V battery is rated at 80 Ah. It can deliver a current of 80 A for one hour, or a current of 40 A for 2 hours, etc. What is the total energy stored in the battery
What mass (in grams) of steam at 100°C must be mixed with 377 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 58.0°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg, ..
A low-power laser used in a physics lab might have a power of 0.55 mW and a beam diameter of 2.6 mm. Calculate the average light intensity of the laser beam
A 50 g ball is fired horizontally with initial speed v_0 toward a 110g ball that is hanging motionless from a 1.10 m-long string. The balls undergo a head-on, perfectly elastic collision, after which the 110g ball swings out to a maximum angle the..
A golfer hits a shot to a green that is elevated 3.20 m above the point where the ball is struck. find the speed of the ball just before it lands
A 12 kg object oscillates at the end of a vertical spring that has a spring constant of 1.70 x10^4 N/m. The effect of air resistance is represented by the damping coefficient b = 3N•s/m. Find the time interval that elapses while the energy of the ..
A person's prescription for her new bifocal glasses calls for a refractive power of -0.461 diopters in the distance-vision part, & a power of +1.83 diopters in the close-vision part. Compute the near & far points of this person's uncorrected visio..
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