Two different isotopes of the same element have
A) the same chemical properties, and also the same properties in nuclear processes.
B) different chemical properties, but the same properties in nuclear processes.
C) different chemical properties, and also different properties in nuclear processes.
D) the same chemical properties, but different properties in nuclear processes.
E) None of the above.
D
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Diffraction Gratings: Monochromatic light is incident on a diffraction grating that is 75 mm wide and ruled with 50,000 lines. The second-order maximum is seen at 32.5°. What is the wavelength of the incident light?
A. 202 nm B. 403 nm C. 605 nm D. 806 nm
Is it possible for the gravitational potential energy of an object to be negative?
A. Yes B. No
The speed of light is 3.00 × 108 m/s. If 2.00 kg of mass is converted to energy, how much energy will be produced?
A) 1.80 × 1017 J B) 1.50 × 108 J C) 6.00 × 104 J D) 6.00 × 108 J E) 9.00 × 1016 J
Large-capacity (~ 22 ft3) refrigerators that are freezer on top use about 600 kWh/yr while side by side refrigerator-freezers of the same capacity use about 660 kWh/yr. Each costs about $1000
What will be the total cost after 19 years? Which one should you buy? What considerations enter into your decision?