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It requires 350 joules to raise a certain amount of a substance from 10.0°C to 30.0°C. The specific heat of the substance is 1.2 J/g°C.
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Sound waves traveling through liquids tend to move faster than sound waves traveling through And, in general, sound waves move the fastest through 1st box : solid or gases 2nd box : gases, liquids, a
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Steven buys a pair of scissors instead of getting a haircut. He belives the scissors will last for a long time, while the haircut will only last a few weeks. In this case, scissors is a good, while th
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Which of the following is the best example of an object in free fall? A.A ball rolling across a floor B.An airplane landing C.A bird flying D.A person diving
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A 160.-kilogram space vehicle is traveling along a straight line at a constant speed of 800. meters per second. The magnitude of the net force on the space vehicle is (1) 0 N (3) 8.00 × 10^2 N (2) 1.
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A chemical is a representation of a compound that gives the number of atoms and types of atoms in that compound.
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An astronaut takes an iPod onto the space shuttle. An identical iPod remains on Earth. Which statement about the pull of Earth's gravity on the iPods is true? A.Earth's gravity has a stronger pull
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For an object to be in free fall: A.Earth's gravity must be the only force acting on it. B.the mass of the object must remain constant as it falls. C.it must be falling to Earth with constant
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Bob mixed 5 mg of sodium hydroxide pellets in 100 mL of water. Describe how the rate of the solution changes when he adds 1 mg more of sodium hydroxide pellets.
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Which of the following is true about gravity?Check all that apply. A.Two objects experience a greater gravitational pull when they are closer together. B.Gravity causes objects in free fall to f
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I had a little confusion with this question. Thanks if you can take out the time to help! (: Describe what would happen to both air temperature and soil temperature if cold weather were to pass throug
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What is the difference between angular speed and linear speed and how i can deduce the law of angular speed
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What does xylem do in a plant Transport food Transport water Prevent water loss Preform photosynthesis
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A car drives toward the right over the top of a hill, as shown below. Which arrow represents the centripetal acceleration? W X Y Z
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(8c32p7) suppose that a parallel-plate capacitor has circular plates with radius r = 70.0 mm and a plate separation of 5.7 mm. suppose also that a sinusoidal potential difference with a maximum value
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Ball is thrown eastward into the air from the origin (in the direction of the positive x-axis). the initial velocity is 60 i + 80 k, with speed measured in feet per second. the spin of the ball result
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A very long solenoid with a diameter of 3 cm and length 20 cm is wound with 500 turns of wire. when current in the wire is reduced from 10 a to zero in 0.2 s, what average emf is induced in the soleno
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A thick copper wire connected to a voltmeter surrounds a region of time-varying magnetic flux, and the voltmeter reads 13 volts. if instead of a single wire we use a coil of thick copper wire containi
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A stream of air at 37°c and 50% relative humidity flowing at a rate of 1250 kg/h is to be cooled to 15°c and dehumidified in a spray tower. the air is saturated as it emerges from the tower. liquid
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A solid uniform disk of diameter 3.20 m and mass 42 kg rolls without slipping to the bottom of a hill, starting from rest. if the angular speed of the disk is 4.27 rad/s at the bottom, how high did it
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A series rlc circuit consists of a 92.0 ω resistor, a 0.160 h inductor, and a 35.0 μf capacitor. it is attached to a 120 v/60 hz power line. what is the peak current i at this frequency
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A roller-coaster car has a mass of 494 kg when fully loaded with passengers. (a) if the vehicle has a speed of 20.7 m/s at point a, what is the force in newtons exerted by the track on the car at this
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An rlc circuit has a resistance of 200 ???? and an inductance of 15 mh. its oscillation frequency is 7000 hz. at time t = 0 the current is 25 ma and there is no charge on the capacitor. after five com
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A 15 kg child is sitting on a playground teeter-totter, 1.5 m from the pivot. what is the magnitude of the minimum force, applied 0.3 m on the other side of the pivot that is needed to make the child
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A guitar string has a mass per length of 2.33×10−3kg/m and a fundamental frequency of 146.8 hz when it is under a tension of 82.4 n. the string breaks, and its owner has only a spare string of mass
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A gaussian surface in the shape of a right circular cylinder with end caps has a and a length of 80.0 cm. through one end their net flux of 25.0 mwb. at the other end there is a uniform magnetic field
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A completely reversible heat engine operates between a thermal reservoir at 1500 r and a another at 400 r. if the entropy of the sink increases by 10 btu/r, how much will the entropy of the source
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What physical property causes you to lean one side when the bus you are traveling in takes a sharp turn?
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A block of mass m = 2 kg has a speed v and is behind a block of mass m = 44 kg that has a speed of 0.5 m/s. the surface is frictionless. the blocks collide and couple. after the collision, the blocks
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The principle of superposition states that in undisturbed rock layers, the youngest layer of rock will be on the bottom, while the oldest layer will be on the top.
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Which change increases the electric force between objects? Two neutral objects are moved closer together. Electrons are added to two negatively charged objects. Two oppositely charged objects are move
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A small puck with a mass of 0.10 kilograms is sliding in the +x-direction on an air table with an initial speed of 8.0 meters/second. The puck collides with a larger puck that is initially at rest. Th
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Vascular plants can be divided into three categories. These categories are A).flowering, nonflowering, and leafy. B).leafy, ground, and underwater. C).seedless, seed (nonflowering), and seed (flowerin
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One differentiating characteristic between vascular and nonvascular plants is the lack of active transport structures in the nonvascular plants. How does the lack of xylem or phloem contribute to the
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This problem is about how strongly matter is coupled to radiation, the subject with which quantum mechanics began. For a simple model, consider a solid iron sphere 2.00 cm in radius. Assume its temper
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A ___vector____________ is a quantity that is fully described by both _____magnitude______ and _____direction________.
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A point charge is used to determine the electric field around a charged particle. Why is it necessary that the point charge does not affect the position of the charge being tested?
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On May 18, 1980, Mount St. Helens in Washington State experienced a huge volcanic eruption after a magnitude 5.1 earthquake. During the eruption, hot ash and pumice poured down the west, south, and ea
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How long should the nicot wire be taken to become a 70-resistive nicron iron heater when the wiring cross-section area is o, 2 is the specific resistance of nicrome ..
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A block of height 120mm is placed on top of another block with a height of 1.50 m. What is the height of the two blocks together?
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What is the name of the part of the wave that is labeled with the question mark?https://media.edgenuity.com/contentengine/frames/2a178704-9018-11e3-966b-bc764e043e0c/3208-10-03-10-11-image1.png
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Which of these is generally considered to have been discovered by Einstein? -space is empty -mass bends Space-time -gravity causes acceleration -an electric charge produces an electric field around
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PLZZZZZ HELP!!!!! (40PTS) How do the recordings of the slow shakes compare to those when the table was shaken strongly? How would the seismogram of a magnitude 9 earthquake compare to that of a 5 magn
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PLZZZZZ HELP!!!! (40PTS) How do the recordings of the slow shakes compare to those when the table was shaken strongly? How would the seismogram of a magnitude 9 earthquake compare to that of a 5 magni
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Which statement best describes how a wave would move differently through a pot of boiling water than the steam created from it? A.The wave would move faster through the water than through the steam. B
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The role of the excretory system is to rid the body of toxic waste products. Which of these body systems also plays a direct role in removing waste products from the body?
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If you row a boat Upstream at 25 kilometers per hour and the river has a downstream velocity of 10 kilometers per hour how fast and in what direction will you move
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Imagine a Carnot engine has a hot reservoir of 680 K and a cold reservoir of 220 K. What is the efficiency of the engine?
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How much energy in megajoules is given up by 0.75kg of water at 0 C when it freezes to form ice at 0 C
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mathematically speaking the energy of a wave is directionally proportional to the square of the amplitude of the wave. calculate the energy of a wave that has an amplitude of 4 units
