What is the mass of each unit cell if density is given
Gold foil is 0.08 mm thick and 670 mm2 in area. (a) It is cubic with a = 0.4076 nm. How many unit cells are there in the foil? (b) What is the mass of each unit cell if the density is 19.32 Mg/m3 (= 19.32 g/cm3)?
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A powered rotating disc roates with a constant 2.27 rad/s2 angular acceleration. After 3.98 s it has rotated through an angle of 60.7 radians. Find the angular velocity of the wheel at the beginning of the 3.98 s interval.
In a special test for determining the performance of a heat exchanger, an electric heater produces a temperature variation in an airflow that can be approximated with a 1-Hz sine wave.
A rigid tank containing 20 kg of Refrigerant 134a as saturated vapor at 1.0 bars and -26.43 *C is heated until the temperature reaches 20 *C.
A 3.00 m diameter university communications satellite dish receives TV signals that have a maximum electric field strength (for one channel) of 7.20 µV/m. (a) What is the intensity of this wave? (b) What is the power received by the antenna?
How many unit cells are there in the foil? What is the mass of each unit cell if the density is 19.32 Mg/m3 (= 19.32 g/cm3)?
Steam enters a steady flow turbine at 30MPa, 1000degC with a flow rate of 10kg/s. Thirty percent of the inlet mass of steam is extracted from the turbine at 10MPa, 500 degrees C.
The cube has sides of lenght L=10.0cm. The electric field is uniform, has the magnitude E = 4.00 x 10^3 N/C, and is parallel to the xy-plane at an angle 53.1 degree measured from the +x-axis toward the +y-axis. (a) What is the electric flux throug
Assuming the process is adiabatic: is this process possible? assume the heat capacity of the ideal gas is (7/2)R. What is the maximum possible temperature difference between the hot and cold streams?
She knows that a high wind reduces the air pressure on the roof, and that there is a danger that the atmospheric pressure inside the house will blow the roof off. As the wind reaches a speed of 42.5m/s, she calls to her Auntie Em for help. Calcula
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Outline a social issue that is important to you. Describe why it is important to you, why it is important from a societal perspective and how you think
Adler believed that your birth order determines, to a large extent, your personality. He stated that your traits reflect, somehow, how you have achieved
Amanda said? Excellent post, Chrystal. You provided great insight into the helpful resource ERIC digital library is. I appreciate how it states the information
In our readings, we learn more about the nature versus nurture argument. For this discussion, I want you to go in depth a bit more and debate the importance
Early food experiences can impact development over several learning domains, including Social and Emotional Development, Language
Problem 1: Identify a specific theory of cognitive or moral development, and summarize the major assumptions.
Describe the results, including any scores. Result: E6% Extraverted Action oriented, Outgoing, Expressive, Hands-On S17% Sensing Traditional,