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Describe the importance of rare earth elements in science and technology. Assess the most common uses of these elements, particularly as encountered in your daily life, as well as projections for
Assess your local environment, either in your home, town, or region. Describe the type of common chemical hazards that are present in your local environment.
Imagine that you recently found out you live close to a Superfund site. Identify the most important information you would want to know about the site. Give your opinion on whether you would move to
Identify three specific challenges to making direct measurements in the fields of astronomy, chemistry, physics, or earth science. Describe how scientists have utilized indirect forms of measure
Describe why Pluto was demoted from the planet status. Be sure to describe what class of planetoid it is considered now, and a little about the other bodies that share this distinction in our solar
Compare and contrast the eruption styles of the Mauna Loa Volcano in Hawaii and Mount Pinatubo in Philippines.Be sure to include a review of the plate tectonic setting.
Linear Antenna shows the magnetic field near a half-wave linear antenna fed from one end. You can vary the length of the antenna using the "Length" slider.
Identify cultural and personal attitudes about death and dignity in late adulthood. Use a minimum of three peer-reviewed sources. Format your paper consistent with APA guidelines.
A 30 kg crate is pulled across a flat floor with 80 N of force. The coefficient of kinetic friction between the crate and the floor is 0.15. Draw a free body diagram illustrating this situation and
A ball is thrown vertically upward and then comes back down. Describe the behavior of the ball's velocity and acceleration.
A runoff for a truck consists of aa 500 meter horizontal runway with course gravel to stop the truck. THe mass of the truck is 5000 kg, the coefficient of friction on the gravel is.
Two forces, one equal to 15 N and another equal to 40 N, act on a 50-kg crate resting on a horizontal surface.If the crate starts from rest, what is its horizontal speed after 5 seconds?
The scientific method is used by scientists to understand the natural laws that the universe obeys. Scientists are not necessarily the only people who might use the scientific method.
The average speed of a perfume - vapor molecule at room temperature may be about 300 m/s, but you 'll find the speed at which the scent travel across the room in much less. Why?
Three charges, q1 = +1.98 10-9 C, q2 = -3.15 10-9 C, and q3 = +1.06 10-9 C, are located on the x-axis at x1 = 0, x2 = 10.0 cm, and x3 = 20.0 cm. Find the resultant force on q3.
Create a position vs. time, speed vs. time, and acceleration vs. time graph for both cars. Write a paragraph comparing and contrasting the two position graphs.
If the maximum height from which a person can jump (without a parachute) and still survive is 7.50 meters, the maximum landing speed for a parachusist is therefore m/s. Gravitational acceleration i
Find the mass of 600 cubic centimeters of water.If the pressure of the day is 1 atmosphere (P zero), what will be the height of
In a historical movie, two knights on horseback start from rest 99 m apart and ride directly toward each other to do battle. Sir George's accleration has a magnitude of 0.22 m/s2.
A ball rolls off a platform that is 7 meters above the ground. The ball's horizontal velocity as it leaves the platform is 4.2 m/s.
Instructions for ?nding a buried treasure include the following: Go 304.2 paces at 209? , turn to 183? and walk 275 paces, then travel 167 paces at 117?.Find the magnitude of the resultant displace
A 12oz can of coke contains 39 grams of sugar. You pour 5oz of coke into a glass. Give an interpretation, if there is one, of each of the following numbers. 1. 39/12 2.12/39 3.39/5 4.(5/12)x39 5.(1
A moon probe falls to the moons surface from an orbital height of 16 km. what is the final velocity (m/s) as it hits the surface if the moons gravity is approx. 1/6 of Earths gravity?
A train traveling at v0 = 25.0 m/s begins to brake by applying a velocity-dependent instantaneous acceleration a(v) = α /(v u) m/s2, where α = - 15.0 m2/s3.
A ditch 2.5 m wide crosses a trail bike path. An upward incline of 15 degrees has been built up on the approach so that the top of the incline is level with the top of the ditch. What