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An open, rigid-walled, cylindrical tank contains 4 ft3 of water at 40°F. Over a 24-hour period of the time the water temperature varies from 40°F to 90°F. Make use of the data in appendix B to determine how much the volume of the water will change. For a tank diameter of 2 ft, would the corresponding change in water depth be very noticeable?
what are the magnitude and direction of its acceleration. find out the magnitude of the charge on the moving particle.
The air inside a bicycle tire pump has 221 joules of work done on it as 60.1 joules of heat is conducted away from it
A laser with wavelength d/8 is shining light on a double slit with slit separation 0.450 mm. What is the wavelength of the second laser
The three resistors are identical with R1 = R2 = R3= 160 ?, and the battery voltage is 50 V. What is the current through resistor R2? R2 and R3 are parallel so these need to be treated with R1 as Requiv = R1+ (R2*R3)/R2+R3 but don't know where to ..
A blackened, solid copper sphere that has a radius equal to 4.5 cm hangs in an evacuated enclosure whose walls have a temperature of 23°C. find the initial rate at which its temperature changes
Astronauts use a centrifuge to simulate the acceleration of a rocket launch, What is the astronaut's tangential acceleration during the first 20.0s
An electric eel develops a 460V potential difference between its head and tail. What is the energy delivered by this pulse
A ball is thrown vertically upward with a speed of 15.0 m/s. (a) How high does it rise? m (b) How long does it take to reach its highest point? s (c) How long does the ball take to hit the ground after it reaches its highest point? s (d) What is i..
A 2400 kg car moving at an initial speed of 25 m/s along a horizontal road skids to a stop in 64 m. Find the energy dissipated by friction
A Molecule of DNA is 2.17 um long. The ends of the molecule become strongly ionized: negative on one end, positive on the other. The helical molecule acts like a spring and compresses 0.78% upon becoming charged. Determine the effective spring con..
A guitar string has a tension on it of 6500 N and length of 1.2 m. what is the linear mass density of the string
A 28.0kg child plays on a swing having support ropes that are 2.10m long. How fast will she be moving at the bottom of the swing
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