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One method for determining the amount of corn in early Native American diets is the stable isotope ratio analysis (SIRA) technique. As corn photosynthesizes, it concentrates the isotope carbon-13, whereas most other plants concentrate carbon-12. Overreliance on corn consumption can then be correlated with certain diseases, because corn lacks the essential amino acid lysine. Archaeologists use the mass spectrometer to separate the and isotopes in samples of human remains. Suppose you use a velocity selector to obtain singly ionized (missing one electron) atoms of speed 7.79km/s and want to bend them within a uniform magnetic field in a semicircle of diameter 20.2cm for the . The measured masses of these isotopes are 1.99×10?26kg (12 c) and 2.16×10?26kg(13 c) .
A) What strength of magnetic field is required?
B) What is the diameter of the semicircle?
C) What is the separation of the and ions at the detector at the end of the semicircle?
What will be the total horizontal distance traveled by the ball? What is the velocity of the ball (magnitude and direction) the instant before it hits the ground? That is what is its i-component? What is its j-component?
In November 2003, the now-most-distant-known object in the solar system was discovered by observation with a telescope on Mt. Palomar. What is Sedna's minimum speed
A 0.200-kg block along a horizontal track has a speed of 1.40 m/s, What is the spring's maximum compression if the track is frictionless
A box of mass m = 5 kg sits at the top of a ramp of mass M = 20 kg and height h = 2.0 m with incline angle ? = 30°. What are the final velocities (magnitude and direction) of the ramp and the box
An LED is constructed from a pn-junction based on a certain GA-As-P semiconducting material whose energy gap is 1.9 eV. What is the wavelength of the emitted light
Object O1 is 15.2 cm to the left of a converging lens with a 11.8-cm focal length. What is the nature (i.e., real or virtual, upright or inverted) of the final image
An express subway train passes through an underground station. It enters at t = 0 with an initial velocity of 18.5 m/s and decelerates at a rate of 0.150 m/s2 as it goes through. How fast is it going when the nose leaves the station
A piano tuner stretches a steel piano wire with a tension of 964N . The wire is 0.400m long and has a mass of 3.60g. What is the frequency of its fundamental mode of vibration
A uniform electric field exists in the region between two oppositely charged plane parallel plates. Find the magnitude of this electric field
A stunt man drives a car at a speed of 20 m/s off a 27-m-high cliff. The road leading to the cliff is inclined upward at an angle of 20?. How far from the base of the cliff does the car land
a capacitor is connected across the terminals of an ac generator that has a frequency of 448 Hz and supplies a voltage of 21 V. Find the capacitance of the second capacitor.
It's nighttime, and you've dropped your goggles into a swimming pool that is 4.5m deep. How far are the goggles from the edge of the pool
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