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A forest fire makes a loud roaring sound. The explosive processes that release energy from the Sun occur at a much higher temperature. Why don’t you hear a roaring sound from the sun?
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Match the serving size with the correct type of food. ANSWER OPTIONS: unlimited, cut in half, size of fingers, palm of hand PROBLEMS: 1. bagel: 2. chicken: 3 .raw carrots: 4. celery: 5. cotta
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How does distance between two objects affect their gravitational force? Force increases as distance increases. Force decreases as distance increases. Force decreases as distance decreases. Force i
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(02.05 LC) Readers who purchase singer/actress Jennifer Hudson's I Got This: How I Changed My Ways and Lost What Weighed Me Down will most likely read about things that worked for Hudson, but might no
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It does not rain very often in the desert when it does ring the Seas with the desert wildflowers such as those shown below immediately begin the plants bloom make new season complete their whole life
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Covalent compounds exchange electrons in a chemical bond. have a low melting point. have weaker bonds than ionic compounds. are formed from one metal and one non metal.
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The charges onto metallic balls are 5.0 and 7.0 call looms respectively they are kept 1.2 m apart what is the force of interaction between the two
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A Batter swings at a baseball. The action force is the bat hitting the ball with a force of 5N. What is the reaction force? A. the hitter swinging the bat B. the pitcher throwing the ball C. the ball
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What quantity measures the number of complete cycles oscillation makes per second? a. Period b. Amplitude c. Frequency d. Force
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Find the amount of work done in emptying a cylindrical tank completely filled with kerosene. Assume that the radius of the cylindrical tank is 3 m, height is 6 m, and the density of kerosene is 817.15
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In a Venn diagram, the separate circles contain characteristics unique to each item being compared, and the intersection contains characteristics that are common to both items being compared. Maggie i
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Fluorine has an atomic number 9. It is in period 2 of the periodic table. The diagram shows the electron dot diagram of a fluorine atom.
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I NEED LAB REPORT PLZ READ CAREFULLY AND ASK ME IF YOU HAVE ANY QUESTIONS.
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Peer pressure is when someone is pressured to do something by members of their social group. It can be a very powerful force that encourages someone to do something that he or she is not comfortable d
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A wrecking ball has a mass of 650 kg. It swings from a cable that is 21 m long. The centripetal force on the ball is 56 N. What is the tangential speed of the wrecking ball? 1.3 m/s 1.8 m/s 46 m/s 870
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What is the maximum kinetic energy k0 of the photoelectrons when light of wavelength 330 nm falls on the same surface?
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Two protons are released from rest, one from location 1 and another from location 2. when these two protons reach location 3, the first proton has a speed that is 3.00 times the speed of the second pr
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Two conductors having net charges of 15.7 µc and −15.7 µc have a potential difference of 14.8 v. determine the capacitance of the system. answer in units of f.
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The heat of vaporization of water is 40.66 kj/mol. how much heat is absorbed when 3.48 g of water boils at atmospheric pressure?
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According to the work of the Curies, which action would increase the radioactivity of polonium? Dissolve the polonium in a solvent. Heat the polonium until it becomes a gas. Expose the polonium sample
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Which statement regarding the importance of human relations is false? A. People accomplish more in their work and personal lives when practicing good human relations. B. In general, people accomplish
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A 1.0-mm-diameter, 30-cm-long copper wire carries a 2.0 A current. What is the potential difference between the ends of the wire?
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You place the spring vertically with one end on the floor. you then drop a book of mass 1.50 kg onto it from a height of 0.600 m above the top of the spring. find the maximum distance the spring will
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When excited, elemental sodium gives off a distinctive color that is used often in street lighting. what is the predominant wavelength associated with the emission of atomic sodium? (you may need to c
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What must the charge (sign and magnitude) of a 1.55 g particle be for it to remain balanced against gravity when placed in a downward-directed electric field of magnitude 700 n/c ?
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What is the net work done on the canister by the three forces during the first 4.00 m of displacement?
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What is the average horizontal component of force exerted on his feet by the ground during acceleration?
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Two charges, one of 2.50μc and the other of -3.50μc, are placed on the x-axis, one at the origin and the other at x = 0.600 m. find the position on the x-axis where the net force on a small charge +
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The first artificial satellite to orbit the earth was sputnik i, launched october 4, 1957. the mass of sputnik i was 83.5 kg, and its distances from the center of the earth at apogee and perigee were
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The compressor of an air conditioner draws an electric current of 15.7 a when it starts up. if the start-up time is 1.55 s long, then how much electric charge passes through the circuit during this pe
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Sam, whose mass is 71 kg , takes off across level snow on his jet-powered skis. the skis have a thrust of 190 n and a coefficient of kinetic friction on snow of 0.1. unfortunately, the skis run out of
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Over a certain region of space, the electric potential is v = 6x − 2x2y + 7yz2. (a) find the expressions for the x, y, z components of the electric field over this region. (use any variable or symbo
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Light from a helium-neon laser (λ=633nm) passes through a circular aperture and is observed on a screen 4.90 m behind the aperture. the width of the central maximum is 2.40 cm . part a what is the di
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The length of each of the bonds between the atoms of a molecule of nitrogen (N2) is 0.142 nm. The mass of a nitrogen atom is 2.32 × 10−11 pg.Determine the moment of inertia of the molecule about an
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A closed, rigid tank fitted with a paddle wheel contains 0.1 kg of air, initially at 300K, 0.1 MPa. The paddle wheel stirs the air for 20 minutes, with the power input varying with time according to W
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The public is not yet able to purchase hydrogen fuel cell powered cars because engineers have to determine how the cars perform
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ALWAYS use significant figure rules. Remember that these rules apply to all numbers that are measurements. A person walks along a road 2 miles and rests. Then taking another road, he travels 3.000 mil
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When two charge producers with different surface materials are rubbed together to create a charge imbalance, how will the electric charge on one of the producers compare to the electric charge on the
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Rank the six combinations of electric charges on the basis of the electric force acting on q1. define forces pointing to the right as positive and forces pointing to the left as negative. rank positiv
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A child traveling 5m/s on a sled passes her younger brother. If her average acceleration on the sledding hill is 2m/s square, how fast is she traveling when she passes her older brother 4s later?
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A policeman starts giving chase 60 seconds after a stolen carzooms by at 108 km>hr. At what minimum speed should hedrive if he has to catch up with the driver before he managesto get onto an expresswa
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If a ball is given an initial speed of 15 m/s on a horizontal, frictionless surface, how fast will the ball be rolling in 5 seconds?
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A rock dropped on the moon will increase its speed from 0 m/s to 4.9 m/s in about 3 seconds. what value do you calculate for the magnitude of the acceleration of gravity on the moon
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1) Which situation is an example of transferring heat by means of convection? A) the sun warming the earth B) the weather patterns outside C) you toasty-warm in some footy pajamas D) you accidenta
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A particle is located at the vector position r = (3i+2j) m and the force acting on it is F = (2i+3j) N . The torque of the force about the origin is
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A skier with a potential energy of 137,200 j waits on top of a ski jump that is 200 m high what is the mad as of the skier
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The main difference between the internal combustion engine and the diesel engine is that the diesel engine A. does not utilize pistons. B. does not have a crankshaft. C. has no ignition system. D.
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The density of atmosphere (measured in kilograms/meter3) on a certain planet is found to decrease as altitude increases (as measured from the planet's surface). What is the type of relationship betwee
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Suppose you are building a series circuit with a battery and a small light bulb and you run out of wire what common objects could you use to connect the battery to the light bulb explain please. Thank
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a basket player releases the ball 7 ft above the floor when he is 30 ft from the basket. The ball goes through the rim of the basket (which is 10 ft above the floor) 1.5 seconds after release. Find th
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