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The two surfaces of a plastic converging lens have equal radii of curvature of 24.5cm , and the lens has a focal length of 18.5cm. Calculate the index of refraction of the plastic.
The internal energy of a gas is 1000j. The gas is compressed adiabatically and it's volume deceases by 400cm^3. What is internal energy of gas
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 convex mirror with a radius of curvature of 32.0 cm forms a 1.20 cm tall image of a pencil at a distance of 13.6 cm behind the mirror. Calculate the object distance for the pencil and its height
If linear momentum is conserved when there is no external force applied, how is angular momentum conserved
A transformer with a turns ratio (secondary/primary) of 1:15 is used to step down the voltage from a 120-V wall socket to be used in a battery recharging unit.
Two children pull in opposite directions on a toy wagon of mass 9kg. One exerts a force of 18 N and the other exerts a force of 46 N
During an initial stage of construction, the beam is not to be bolted to the wall, but to be held in place solely by friction. What is the least coefficient of friction between the beam and the wall for the beam to remain in static equilibrium.
To separate two pieces of paper whose area is 10 cm by 10 cm, you blow across them with an air speed of 2.40 m/s. What is the resulting force on each
A converging lens of focal length 7.550cm is 20.5cm to the left of a diverging lens of focal length -6.50cm, find the location of the coins final image
Find the lowest energy of the system (in electron volts) and list the quantum numbers of all occupied states. Find when the current in the solenoid increases to 5.0 A in a period of 0.90 s.
The magnetic flux of a 200 turn coil changes from 1000 Mx to 16,000 Mx in 4 us. what is the absolute value of induced voltage
The two liquids do not mix. What is the difference in height between the top surface of glycerine and top surface of the alcohol.
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