On which temperature scale is 212 degrees the boiling point of water?
A) Celsius
B) Caloric
C) Kelvin
D) Fahrenheit
E) none of the above
Answer: D
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A very dense 1500-kg point mass (
A) and a dense 1200-kg point mass (B) are held in place 1.00 m apart on a frictionless table. A third point mass is placed between the other two at a point that is 20.0 cm from B along the line connecting A and B. When the third mass is suddenly released, find the magnitude and direction (toward A or toward B) of its initial acceleration. (G = 6.67 × 10-11 N ? m2/kg2 )
(a) What is the wavelength of the peak of the blackbody radiation curve for something at 3,000 kelvins (the temperature of the filament of a light bulb)? (b) What type of EM wave is this?
Coil 1, connected to a 100-? resistor, sits inside coil 2 . Coil 1 is connected to a source of 60 cycle per second AC current. Which statement about coil 2 is correct?
a. No current will be induced in coil 2. b. DC current (current flow in only one direction) will be induced in coil 2. c. AC current (current flow in alternating directions) will be induced in coil 2. d. DC current will be induced in coil 2, but its direction will depend on the initial direction of flow of current in coil 1. e. Both AC and DC current will be induced in coil 2.
If a 1H nucleus, a 2H nucleus, and a 3H nucleus all had the same momentum, which one has the lowest de Broglie wavelength?
a. 3H b. 2H c. 1H d. All three have the same de Broglie wavelength.