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In lab, you performed an experiment with a spring to find the mass of an "unknown mass." if the spring constant is 9.50 n/m and the "unknown mass" caused a displacement of \delta 15.6 cm, what is the
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If this pulley is subjected to a constant counterclockwise angular acceleration of αa= 3 rad/s2 , determine the angular velocity of pulley b after b turns 5 revolutions. the hub at d is rigidly conne
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How fast (in m/s and mph) would a 6.80-cm copper bar have to move at right angles to a 0.550-t magnetic field to generate 1.50 v (the same as a aa battery) across its ends?
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Given an electron beam whose electrons have kinetic energy of 10.0 kev , what is the minimum wavelength λmin of light radiated by such beam directed head-on into a lead wall? express your answer nume
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At what depth, in meters, a column of mercury is the pressure 1.00 atm? the density of mercury is 13.6 × 103 kg/m3.
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Continental __________ fill in volcano __________ fill in plains description low land between hills or mountains ____________ deep valley with high steep sides deepest part of the ocean volcano an
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A simply supported wood beam of length l = 6 ft carries a concentrated load p at midspan, as shown. the cross-sectional dimensions of the beam are b = 6 in. and h = 11 in. if the allowable shear stren
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Please help, I am very confused!! A wave has a wavelength of 11 mm and a frequency of 17 hertz. What is its speed?
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A 935 kg drag race car accelerates from rest to 117 km/h in 0.749 s. What change in momentum does the force produce?
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The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy. fill in the blank
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If an object loses 21.7x10^19 electrons, what would be the electric charge of this object, measured in Coulombs?
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The excess internal pressure (above the external pressure) tries to open the bubble while the surface tension tries to close it.The excess internal pressure (above the external pressure) tries to open
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Which of the following questions can use science as a method of inquiry? How many of hours of homework should be assigned each night? Should pitbulls be allowed to live in cities? Why does a cork floa
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Suaru generator memiliki kumparan berdiameter 0,1m dengan jumblah lilitan 250 dan berputar 3600 rpm dalam medan magnetik 0,6 T. Tentukan tegangan maksimum yang dihasilkan generator?
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Berapakah kapasitas dari generator van de graff yang akan menyimpan muatan 8Mc ketika diberi potensial 12 MV ?
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A 581-kg satellite is in a circular orbit about earth at a height above earth equal to earth's mean radius. (a) find the satellite's orbital speed.
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During a heat wave, there is an increased demand for electricity to operate air conditioners. The basic design of a nuclear reactor that generates electricity is shown below. What is the best way for
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What is the correct order of energy conversions associated with a power plant that uses nuclear fission reactions? -thermal to nuclear to mechanical to electrical -thermal to mechanical to nuclear to
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A tennis ball with a velocity of 9.45 m/s to the right is thrown perpendicularly at a wall. AFter striking the wall, the ball rebounds in the opposite direction with a velocity of -7.48 m/s to the lef
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Explain the relationship between a planet's distance from the sun, the lengthy of a year, and duration of it's orbit
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A 5 cm object is 18.0 cm from a convex lens, which has a focal length of 10.0 cm. What is the distance of the image from the lens? Round your answer to three significant figures.
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The flow of energy In a series circuit, energy is passed from one recipient to the next stops if one of the recipients has a problem. a. on the other hand b. previously c, however d, consequently
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You are offered an add-on loan for $4,500 at 18% for 5 years. What is the monthly payment? What is the amount of interest? What is the true interest?If you could pay the same loan above at a compound
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A woman is applying force to her watermelons, at a farmer's market, what types of friction goes against it?A: rollingB: staticC: sliding
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Two people must have the same speed and velocity if they are walking towards each other, they are walking away from each other, they are jogging side by side, they are jogging to two different destina
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A probe is launched from Earth and lands on Mars. The gravitational acceleration on Mars is 3.7 m/s2. Which statement best compares the mass and weight of the probe? The mass of the probe remains the
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You happen to come across a piece of metal which has a density of ρ = 7.20 g/cm3 when the temperature is t0 = 40.0 °c. if the metal is cooled to a temperature of t1 = 0.00 °c does the density chang
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What is the minimum width of a single slit (in microns) that will produce three minima for a wavelength 687 nm?
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When a molecule of water vapro in the air come into contact with a cold can of soft drink, they lose energy, slow down, and form a liquid due to a decrease in what?
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Two point charges, with charges q1 and q2, are each moving with speed v toward the origin. at the instant shown q1 is at position (0, d.and q2 is at ( d, 0). (note that the signs of the charges are no
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The balloon has a total mass of 400 kg including the passengers and ballast. the balloon is rising at a constant velocity of 18 km>h when h = 10 m. if the man drops the 40-kg sand bag, determine the v
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Set the cannon height to 14 m and the initial speed to 20 m/s. show how to calculate the location of the target. verify your prediction using the simulation. [calculate first and then verify with simu
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In a certain oscillating lc circuit, the total energy is converted from electrical energy in the capacitor to magnetic energy in the inductor in 1.47 μs. what are (a) the period of oscillation in mic
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How much energy is required to rotate the propeller at 5600 rpm? ignore the energy required to push the air?
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F the intensity of an electromagnetic wave is 80 mw/m2, what is the amplitude of the magnetic field of this wave
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Determine the angular velocity of the 12-kg inner gear, measured clockwise, when the link has made two revolutions starting from rest.
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A water pipe tapers down from an initial radius of r1 = 0.23 m to a final radius of r2 = 0.08 m. the water flows at a velocity v1 = 0.84 m/s in the larger section of pipe. 1) what is the volume flow r
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A slab of ice floats on a freshwater lake.what minimum volume must the slab have for a 45.0kg women to be able to stand on it without getting her feet wet? she then stands on a boat and what is the ve
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An x-ray machine uses photons with a frequency of 1 x 1017s-1. calculate the wavelength of this radiation.
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A ground state hydrogen atom absorbs a photon of light having a wavelength of 92.57 nm. it then gives off a photon having a wavelength of 1944 nm. what is the final state of the hydrogen atom? values
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Impurities and weak flavor can be eliminated in a consommé by A. adding a clarification mixture. B. adding clarified butter. C. straining it through a fine mesh sieve. D. doubling the herb mixtures.
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A car of mass m traveling at speed v crashes into the rear of a truck of mass 2m that is at rest and in neutral at an intersection. if the collision is perfectly inelastic, what is the speed of the co
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A mass of 1.5 kg is attached to a spring and placed on a horizontal surface. The spring has a spring constant of 120 N/m, and the spring is compressed 0.25 m past its natural length. If the mass is re
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What is the magnitude and direction of the gravitational Field Midway between the earth and moon?ignore effects of the sun
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The pressure on the windows was generated by air pushing on the windows, which is the average _____ the air molecules are applying over the surface area of the glass.
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How is an image produced by a plane mirror different than an image produced by a convex mirror? It is smaller than the object. It is the same size as the object. It is inverted. It is upright.
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City B is north of City A, and the 400 mile trip by car takes 8 hours. The cities are 320 miles apart in a straight line. What is the velocity of a trip from City A to City B?
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A test car travels in a straight line the graph in the figure shows the cars position x as function of time. find its instantaneous velocity at point e
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Materials that have been layered within the jar. Even if these materials were shaken, they would separate back out into layers after sitting for a while. What property of matter is being demonstrated?
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You want to pull a 10 kg block up a frictionless ramp with an acceleration of 2.5 m/s2. What force do you need to apply along on the block along the direction of the ramp's surface if the ramp is angl
