Car slowed to an average speed
If a car traveled at an average speed of 80 km per hour for 20 minutes, and then slowed to an average speed of 50 lm per hour over the next 15 minutes. How far would it travel in total?
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How many grams of sodium sulfate should be added to how many grams of sulfuric acid to give 1.00 L of buffer with pH 2.80 and a total sulfur concentration of 0.200 M?
How long does this coal reserve of US will last if all coal is used to generate electricity? Assume the efficiency of converting coal to electricity is 35%.
A home receives 1.7 kW of electric power from a transformer on a nearby pole. The line from the substation to the transformer is at 9.0 kV and has 0.10 \Omega resistance. What fraction of the power is lost in this transmission line?
What is the Human Development Index? Suppose the world population in year 2100 will be 9 billion people. Assume the amount of energy needed to provide each person an acceptable quality of life is 100,000 MJ per year.
A sample of serum has a mass of 54 mg and a volume of 225 cm^3. What is its density in g/cm^3? What would be the mass of 150 fluid ounces of this serum? What would be the volume of 1 pound of this serum?
A steel (E = 200 GPa, yield strength = 250 MPa) circular rod 1 m long with a diameter of 0.25 m is put in tension. What is the maximum tensile force that can be applied before the rod becomes permanently deformed?
A student makes a simple ac generator by using a single square wire loop 14 cm on a side. The loop is then rotated at a frequency of 60Hz in a magnetic field of 1.9×10^-2 Tesla . What is the maximum emf output?
A steel (E = 200 GPa, yield strength = 250 MPa) with cross-sectional thickness 100 mm and height 200 mm is subjected to a bending moment.
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Participant reactions to the confederate were recorded by a camera hidden in the ceiling. Is it likely that there will be a Hawthorne effect in this example?
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The principal observes not only teaching style and student rapport, but also student work and productivity. The principal continually notes
Respond to Teresa is a short educational response As a Correctional Administrator, I would implement two youth programs to reduce delinquent behavior
A study analyzing researchers' tendency to influence participants' behavior during research might want to review prior studies as part