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What is the correct sequence of materials, in order of increasing light-transmitting capabilities (from least to most)?
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As Aubrey watches this merry-go-round for a total of 2 minutes, she notices the black horse pass by 15 times. What is the period of the black horse?
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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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Complete the sentence to describe what a wave is and what it does. A wave is a ___ that carries ___ from one place to another.
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Part iv: more than meets the eye (transformer) in a transformer, moving electrons in one coil create a magnetic field. when the created magnetic field interacts with a second coil, electrons can be fo
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Is there a relationship between the magnitude of the bond dipole and how the molecule is affected by the electric field?
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When we talk about the speed of light, we typically think of visible light. though physicists have performed experiments that demonstrate?
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) two stereo speakers mounted 4.52 m apart on a wall emit identical in-phase sound waves. you are standing at the opposite wall of the room at a point directly between the two speakers. you walk 2.11
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An unstretched spring is 19.0 cm long. when you hang an 835 g weight from it, it stretches to a length of 22.0 cm .
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Explain how drinking through a straw illustrates fluid flowing from high-pressure to low-pressure areas.
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If a football player positioned on the scrimmage line runs straight downfield for 26 yards and then cuts to his left for 6.0 yards to receive a pass, what is the football player's total displacement f
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What is the displacement of a spring if it has a spring constant of 10 N/m, and a force of 2.5N is applied
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Which element is a halogen and has a larger average atomic mass than arsenic (As)? A. selenium (Se) B. iodine (I) C. strontium (Sr) D. chlorine (Cl)
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The graph shows all of the stable isotopes of elements according to the numbers of protons and neutrons in their nuclei. (the graph is in the attachment) Which statements are supported by the graph? C
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Two people timed an object with a stop watch. They each got a slightly different result. How could this be?
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Which elements can form acidic compounds? Check all that apply. sulfur rubidium arsenic selenium silicon xenon antimony
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In late adulthood, changes in memory may bot be inevitable however, any decline in memory tends to invite
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In an attempt to reduce our dependence on nonrenewable resources and cut down on the harm to the environment, we could burn ____to produce electricity
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How is power defined? a. the rate at which is accomplished b. the direction of a force applied to an object c. the total distance an object is moved d. the quantity of work accomplished
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Which statements describe the relationship of Earth and its moon? Check all that apply. The moon orbits Earth following a nearly circular path. The gravitational pull of Earth on the moon is parallel
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The drawing shows an edge-on view of two planar surfaces that intersect and are mutually perpendicular. surface 1 has an area of 1.4 m2, while surface 2 has an area of 4.6 m2. the electric field e in
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On an ice skating rink, a girl of mass 50 kg stands stationary, face to face with a boy of mass 80 kg. The children push off of one another, and the boy moves away with a velocity of +3 m/s. What is t
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As more and more energy is added to the atoms of a solid plastic, what will the plastic change into first
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Compare and contrast these forces. You must provide two ways that they are alike and two ways that they are different. You may make a list, write in paragraph form, or make a chart.
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Two deer run toward each other one deer has a mass of 20 kg and runs west with a speed of 5m/s. while the other has a mass of 30 kg and runs east with a speed of 4 m/s. what is the total momentum of t
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A window washer stands on a scaffolding 30m above the ground. If he did 23,520J of work to reach the scaffolding, what is his mass?
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What is the temperature of a metallic block in a thermal equilibrium with a mixture of ice and water at 1 atm pressure? A)0C B)273k. C)0K. D)100C
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A transformer has a primary coil with 300 turns and a secondary coil with 600 turns. If the output voltage is 75 volts, what is the input voltage?
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See attachment there are 2 pipes viewed from the side, pipes A and B. Their masses are 80lb and 60lb. how much force must be applied to pipe B to make the pipes not move. assume that the pipes can mov
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The law of reflection states that if the angle of incidence is 76 degrees, the angle of reflection is ___ degrees.
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Over the course of a year areas near Earth's equator receive more direct energy from the Sun than areas near Earth pole which of the following correctly describes one result of this heating pattern
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A doctor uses an instrument that emits light and allows the doctor to view the inside of a patients intestine. What is the doctor most likely using?
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When Emma pushes a bag with a force of 27 newtons, the coefficient of kinetic friction between the bag and the floor is 0.23. What is the normal force acting on the bag by the floor? 0.085 newtons 27
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Find the value of T1 if 1 = 30°, 2 = 60°, and the weight of the object is 139.3 newtons. 69.58 newtons 45.05 newtons 25 newtons 98.26 newtons
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Two bodies A and B placed on a scale pan supported by a light inextensible string are placed on each other, in such a way that body A is placed on body B , the weight of bodies B and A are ,4N and 2N
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When the Wave moved through your line of students, What Actually moved? In What direction? (Be Sure to explain in full sentences.)
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Two football players collide on the field. Before the collision, their total momentum was 450 kgm/s to the north. What is their total momentum after the collision? A. More than 450 kgm/s north B. 450
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In a given chemical reaction, the energy of the products isn’t greater than the energy of the reactants. Which statement is true for this reaction?
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Sandra is working hard to gain some strength for spring track. She has not done much this winter, so she has decided she will do bench presses and curls on Monday, stomach and back exercises on Wednes
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What is the name for a small depression created by the melting of a chunk of ice in glacial ˢᴱᴰᴹᴵᴺᵀ
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You are designing eyeglasses for someone whose near point is 60 cm. what focal length lens should you prescribe so that an object can be clearly seen when placed at 25 cm in front of the eye
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In the parallel rlc circuit at right, let r = 8 k, l = 0.2 mh, and c = 8 µf. (a) calculate ω 0 , q, and the bandwidth b. (b) find ω 1 and ω 2 .
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The data sheet for the transistor reports that v b e , o n = 0.7 v vbe,on=0.7 v and β = 110 β=110. your lab partner, freddie, biases the transistor such that v c c = 16 v vcc=16 v, r c = 800 ω rc=8
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Based on the thermodynamic properties provided for water, determine the energy change when the temperature of 0.250 kg of water decreased from 109 °c to 30.5 °c.
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A rod consisting of two cylindrical portions ab and bc is restrained at both ends. portion ab is made of steel (es 5 29 3 106 psi, as 5 6.5 3 1026 /8f) and portion bc is made of aluminum (ea 5 10.4 3
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A 1 510-kg automobile has a wheel base (the distance between the axles) of 3.10 m. the automobile's center of mass is on the centerline at a point 1.30 m behind the front axle. find the force exerted
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A box is pulled by a string with horizontal force t across a horizontal, frictionless table. if the box starts from rest, what is the relationship between the speed v1 after the box has moved a distan
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What is the force between two small charged spheres that have charges of 2 x 10–7 C and 3 x 10–7 C and are placed 30 cm apart in air?
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Hiro rubs an inflated balloon on his hair, and his hair sticks to the balloon. As he moves the balloon away from his head, how does the electric force change? The electric force increases because the
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If the mass of a material is 44 grams and the volume of the material is 15 cm^3, what would the density of the material be?