21. determine the activity coefficient given the molal concentration of ZnBr₂ is 0.01 mol/kg.

Would the Canadian Charter of Rights and Freedoms prohibit an employer from putting in place a selection system that favored women over men in the hiring process? Could such discrimination ever be justified under the Charter?

In the first paragraph, examine the roles of native tribes in the American Revolution and what they hoped to receive from their activity.

In the second paragraph, describe the American exceptionalism and nationalism grew out of the Revolution.

This is american history.

Compare ‘all data’ of Maradi and Zinder using a histogram. Do both regions have the same distribution? If they are different, how are they different? Explain your answer using modality and skewness.Answer using R. You can make your answers using # for commands in the R script.
GW_All_Maradi

GW_Zinder

How does the dwarf planet Ceres differ from the other dwarf planets?

Group of answer choices

Ceres is part of the asteroid belt while the other dwarf planets are part of the Kuiper Belt.

Ceres is made mostly of ices and dust while the other dwarf planets are solid rock.

Ceres orbits the Sun while the other dwarf planets orbit Neptune.

Ceres is at least 10 times as massive as the other dwarf planets.

The NASA mission, Clipper, will place a spacecraft in orbit around Jupiter in order to perform a detailed investigation of Europa. We are interested in Europa because there might be the probability that

Group of answer choices

the tidal pull Jupiter has on it theoretically will cause it to shatter.

some form of life exists within its ocean, below its icy surface.

the Galileo mission, while orbiting Jupiter, contaminated its surface, killing all micro-organisms.

the eruptions from the sulfur volcanoes have coated its icy surface with sulfur dioxide (an antioxidant on Earth).

As a comet travels through the inner solar system, the direction of the tail changes. This is because

Group of answer choices

the coma shrinks when the comet is nearest the Sun, where it is the hottest.

regardless of which direction the comet moves, the tails are attracted toward the Sun.

the comet loses its ion tail when it is nearest the Sun due to the Sun's magnetic field.

regardless of which direction the comet moves, the tails are directed away from the Sun.

Meteors in a meteor shower produce light by

Group of answer choices

the energy produced by a mini-nuclear fusion process.

dust reflecting light from the Sun as it enters the atmosphere.

intense frictional heat from traveling through Earth’s atmosphere.

dust reflecting light from the Earth as it enters the atmosphere.

Explain the reason why refineries are considered a major source of pollutant?

State your opinion on the related law and expressions for the following scenario.

i)Heat transfer from a hot burner on the stove to a pot or pan

ii)Heat transfer from a hot surface of rooftop to a windy air.

ii)Heat transfer of a greenhouse effects towards global warming.

Minority groups share five characteristics Unequal treatment, Distinctive,

traits, solidarity membership by birth and marriage within the group. Pick any minority group in the US and give examples of these five characteristics apply to that group.

Steam enters a turbine at a rate of 550 kg/hr. The steam enters the turbine at 28 atm and 350°C at a linear velocity of 55 m/s. The steam leaves the turbine at a point 3.5 m below the turbine inlet at atmospheric pressure and a velocity of 355 m/s. The turbine delivers shaft work at a rate of 50 kW, and the heat loss from the turbine is estimated to be 2250 kcal/hr.

What is the temperature of the exiting stream?

Additionally, if you can, what is the diameter of the exit pipe?

The overall chemical formula for alcoholic fermentation is: C6H12O6 (aq) → 2 C2H5OH (aq) + 2 CO2(g) A 20 % aqueous solution of C6H12O6 was used and the % conversion is 75%. Calculate % by weight of alcohol in the product stream neglecting the solubility of CO2 in water. Use extent of reaction method

While studying "flow through pipes" we say that "as area of cross section decreases then velocity increases in turn pressure gets 'decreased'.( that is pressure and velocity are inversely proportional).However while studying "Hagen poiseuilli equation", we say "pressure and velocity has linear relation and "directly proportional" to each other. Why two different statements,? please help me to understand it.(Fluid mechanics)

Considering the equilibrium conditions, calculate the saturation pressure (P^sat) and the volumes of the liquid and steam phases for 322K methyl chloride. Use the Redlich-Kwong equation of state.

Data: Tc = 416.3K  Pc = 65.9 atm   w = 0.153