How many kilograms of the rock must be processed to obtain
The rock in a particular iron ore deposit contains 83 %Fe2O3 by mass. How many kilograms of the rock must be processed to obtain 1300 kg of iron?
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What is the approximate yield strength of a copper silica alloy which has spherical precipitates of silica of average radius 100 nm. The volume fraction of silica is 1%, the shear modulus is 4.2 × 10^10 Nm-2 and the Burgers' vector is 0.26nm
Using a context of quadratic functions and their graphs, explain the concept of optimization to someone without a background in mathematics.
After the collision, puck A has a velocity of 0.120 m/s to the left, and puck B has a velocity of 0.580 m/s to the right. Calculate the change in the total kinetic energy of the system that occurs during the collision.
Fingernail-polish remover is primarily acetone(C3H6O). How many acetone molecules are in abottle of acetone with a volume of 405 mL? (density of acetone =0.788 g/cm3 ).
An electron moves in a circular path perpendicular to a constant magnetic field with a magnitude of 2.50 mT. The angular momentum of the electron about the center of the circle is 3.00 x 10-25 J·s.
A 4.78-g sample of aluminum completely reacts with oxygen to form 6.67 g of aluminum oxide. Use this data to calculate the mass percent composition of aluminum in aluminum oxide.
An astronaunt of mass 67.3 kg is on a space walk to repair a communications satellite. Suddenly she needs to consult her physics book so you throw it to her with speed 7.1 m/s relative to your spacecraft.
Suppose a patient is given 155 mg of I-131, a beta emitter with a half life of 8.0 days. Assuming that none of the I-131 is eliminated from the person's body in the first 4.0 hours of treatment, what is the exposure (in Ci) during those first four
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The purpose is to examine the psychological factors affecting how teenagers in an impoverished urban area spend their time outside of school using:
Based on information provided in Ch. 11 & 12, how do you define "being an adult"?
Suppose that a group of researchers would like to explore how we perceive objects in the real world, rather than just in a laboratory
Problem 1: Identify a specific theory of cognitive or moral development, and summarize the major assumptions.
Question: Jena and Ben are employees of Big City Electronics. They began to have a consensual sexual relationship.
Identify and discuss three ethical guidelines that are important to consider when designing an 8-week group for adolescents who are referred
Examine historical literature to the most current period to see the growth of romanticism and EXISTENTIALISM. any major developments