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1- the star Altair has its wavelength of maximum energy intensity located at about .0000004 meters. what is the temperature of Altair ? what is
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1. At one point in a skydive, a falling 99 kg skydiver is encountering air resistance of 442 N. How much does the skydiver weigh?
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I asked this question earlier, but I am having trouble figuring out how the tutor got to the final equation. My question:
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concentration plot for standard solutions of a dye has a slope of 0.
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The current through the battery and resistors 1 and 2 in Figure ( a ) is 1. Energy is transferred from the current to thermal energy E th in both...
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In the figure below: E1 =18V, E2=12V, E3 =6V, R1=R3=4, R2=8, R4 =12. Find the current in each branch of the circuit (three in total).
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Nitrogen and hydrogen gases react to form ammonia gas as follows: N2(g)+3H2(g)--2NH3(g) At a certain temperature and pressure, 1.7 L of N2 reacts...
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A. Calculate the APF for (a) the face centered cubic and (b) body centered cubic lattices as volume of atoms/volume of cell. (c) Which structure is
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a metal sample weighing 45.0 grams and at a temperature of 99.1 degrees Celsius was placed in 38.6 grams of water in a calorimeter at 25.0 degrees...
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The skydivers have a weight of 2000 Newtons and feel a force of tension of 2500 Newtons. Draw a diagram.What is the Net Force?What direction is this
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a rollar coaster traveking with an initial speed of 15 meters per second decelerates uniformly at -7.0 per second sqaured to a full stop.
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Based on your learning about how lahars flow (like rivers full of hot ash , right?; where is the most safe place to evacuate to , given the
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Say you are walking your dog along the Puget Sound during an eruption of Mit. Plainier , and the following object lands next to you on the trail :
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Consider the distance , velocity , and way in which various hazards travel down the mountain and across the landscape . Which of the following
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A certain lightbulb has a tungsten filament with a resistance of 21.2 when at 20.0C and 136 when hot.
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Which cells does Ebola attack first and how does it disable the individual? What does Ebolarelease to evade your body's immune system?
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A motorboat accelerates uniformly from a velocity of 6.3 m/s to the west to a velocity of 1.9 m/s to the west. If its acceleration was 2.
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A block is attatched to a disk shaped pulley. The mass of the pulley is M=0.23 kg and its radius is 0. The mass of the block is m=0.55 kg.
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For a system whose input- output relation is given with the differential equation :` `^ ( t) + 1 0^ ^ ( # ] + 23} ( * ) + 10 y ( t ) + 1...
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Gravity on Another Planet After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 46. The explorer finds that...
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In a head-on automobile accident, a 1300-kg car that is moving to the right with a speed of 22.2 m/s collides with a 915-kg car that is moving to the...
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The partial pressure of O2 in air at sea level is 0.21 atm. The solubility of O2 is 1.38E-3 at 1 atm.
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Substance A and B have retention times of 16.4 and 17.63 mins, respectively on a 30 cm column. An unretained species passes through the column at 1.3...
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The answer is (a). A mass m = 102 g is hung from a vertical spring. The equilibrium position is at y = 0. The mass is then pulled down a distance d =...
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wanted to produce the same CM energy as LEP, but using protons directed onto a fixed proton target, what would be the LAB beam energy of the protons?...
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3) Consider a system of three chambers, each of which has the volume V. Suppose that the wall separating chambers I and II is permeable only to type...
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(a) Suppose someone drops lots of PbS (s) into a freshwater lake. Calculate [Pb 2+ (aq)] (mol/L). K sp for PbS (s) is 8.9 10 -29 . (b) The Platte...
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Assume river water is in equilibrium with atmospheric CO 2(g) . Use 0.
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Europium is a lanthanide element found in parts per billion levels in natural waters.
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A magnetized sewing needle has a magnetic moment of 12.48 mA m2. At its location, the Earth's magnetic field is 57.7 T northward at 48.0 below the...
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Coke can be converted into CO (a fuel gas) in the reaction:
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is a 62-year-old black female who has returned to the clinic to discuss her concerns that her lifestyle modifications to lose weight have not worked....
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though plants, fungi, and prokaryotes all have cell walls, we classify them under different taxonomic units.
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You go out and spend a bucket of money on a new stereo amplifier that advertises that it can produce maximum volumes 20 dB greater than your current...
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C Loo 1. 30 Heich +) Falling Time 0.3135 6 3137 0.Blog 0 3 6910 0 3122 0,3714 Trill Trial 2 | Trial 3 6.$292 6,S167 0.531 015256 0 4676 0,4692 0,46...
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I am working on epidemiology homework: I have set up my equation based on my data as such: Incidence Rates = [60 ( # of new cases per month) / 4.
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A wheel rotates with a constant angular ac- celeration of 4 . 85 rad / s 2 . Suppose that the initial angular speed of the wheel is 1 . 5 rad / s.
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Consider 0.7 L of a buer composed of 0.4 M HClO and 0.5 M NaClO? How many moles of strong base could this buer withstand?
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A 350 piano slides 3.8 down a 31 incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (see the figure ).
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Which of the following is an example of homeostasis?
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1501 M solution of hydrochloric acid is used to titrate 30.02 mL of a calcium hydroxide solution to determine its concentration. If 140.
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A particle (mass 6.7x10-27 kg, charge 3.2x10-19C) moves along the positive x axis with a speed of 4.8x105m/s.
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3 ) E- stilbene is an aromatic compound that forms the core of several synthetic dyes . A Grignard reaction between benzylmagnesium bromide and...
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A mass of 4 kg is moving in the +x direction and collides inelastically with another mass of 8 kg moving at 4 m/s in the -x direction. The collision...
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On April 1, 2017, Pearl Company sold 33,300 of its 11%, 15-year, $1,000 face value bonds at 97.
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Imagine that you have a 5.00 L gas tank and a 3.00 L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in...
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At the equator, a 1200 turn coil that has a cross-sectional area of 280 cm2 and a resistance of 13.6 n is aligned so that its plane perpendicular to
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Two solenoids of radii 2 cm and 5 cm are coaxial. They are each 28 cm long and have 250 and 990 turns, respectively. Find their mutual inductance.
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A volume of 80.0 ml of H2O is initially at room temperature (22. A chilled steel rod at 2.00 C is placed in the water. If the final temperature of...
