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An X-ray with a frequency of 3.74 * 10^20 Hz is incident on a thin piece of metal. The lower frequency X-ray on the other side is observed deflected at 48 (degrees). What is the frequency of the deflected X-ray?
during a racing event a 1400 kg car accelerates from 0 to 31 ms in 4.5 s. what is the net force exerted on the car?a
A phonograph record accelerates from rest to 47.4 rpm in 4.00 s. How many revolutions does it go through in the process
500 shares of stock at an initial price of $40 per share. The stock paid a dividend of $0.34 per share during the following year, and the share price at the end of the year was $35.What is the capital gains yield?
A 30-meter steel tape is correct at a temperature of 20.0(C). The distance between two points, What is the true distance between the points
What length of wire is required to create a 10 Ω resistor at room temperature? What length of wire is required to create a 10 Ω resistor at 600 oC?
An airplane accelerates down a runway at 3.20 m/s2 for 32.8 s until is finally lifts off the ground. Determine the distance traveled before takeoff
A bat can detect small objects such as an insect whose size is approximately equal to one wavelength of the sound the bat makes. what is the smallest insect a bat can detect
Choose a model organism that is an animal: Drosophila, C. elegans, zebrafish or mouse. You may also use Aplysia. Do some research on why we use model organisms and why these particular creatures are good model organisms. Try searching . Get on..
A light spring of force constant k = 162 N/m rests vertically on the bottom of a large beaker of water (Figure a). What is the elongation ΔL of the spring in cm?
On an inclined plane of 30° a block, mass m2 = 4 kg, is joined by a light cord to a solid cylinder, mass m1 = 8 kg, radius r = 5 cm (Fig. 1). Find the acceleration if the bodies are released. The coefficient of friction between the block and the i..
A plane has a resultant velocity of 550 m/s N of E and airspeed 350 m/s east. Find the velocity of the wind
A skateboarder, with an initial speed of 4.2m/s, rolls virtually friction free down a straight incline of length 15m in 3.3 s. At what angle is the incline oriented above the horizontal
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