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The density of water at 0°C is 999.84 kg/m3 and at 4°C it is 999.96 kg/m3. A 1 liter container, full to the brim with water at 4°C is located in the refrigerator. By the time that the temperature of the water reaches 0°C, find how much of the water has spilled from the container, assuming that the contraction of the container is negligible?
Two people (one having a mass of 40 kg and the other having a mass of 60 kg) stand at one end of a small uniform boat of mass 100 kg and length 20 m. Determine how far the boat moves in the process assuming no friction between the boat and the wate..
The decibel level of the noise from a jet aircraft is 130 dB when measured 16.8 m from the aircraft. How much sound power does the jet aircraft emit? How much sound power would strike the eardrum of an airport worker 16.8 m from the aircraft? Assu..
400 g block, attached to the end of an ideal spring (horizontal) with force constant k=10 K/m, Calculate angular frequency of the oscillations
a glass graduated cylinder has a volume of 250 milliliters at 0deg c if the temperature is increased to 45deg c will
What is the magnitude of the magnitic filed.
If the gas pressure and volume both double, what's the change in internal energy, find the internal energy of 1mol of oxygen at 291K and 1.0 atm
A cell membrane is composed of lipid molecules and approximately 11 nm thick, what is the approximate capacitance of a spherical cell that has a diameter of 11mu or micro m
An automobile engine takes in 4000 J of heat and performs 1100 J of mechanical work in each cycle. How much heat is "wasted" in each cycle
What was the change in velocity of the scooter.what mass may be placed 2 cm away from the other end of the bar to keep the bar horizontal.
question a baseball played of mass 93.2 kg is sliding horizontally into 2nd base retarded by a force of 575.4 n. what
A hydrogen atom initially in the ground state absorbs a photon, determine the wavelength and frequency of the photon
An AC adapter for a telephone-answering unit uses a transformer to decrease the line voltage of 120 V (rms) to a voltage of 10.5 V. The rms current delivered to the answering system is 400 mA. What is the rms power delivered to the transformer
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