Master Physics with Fun Quizzes & Brain Teasers!

540hz and is traveling at a speed of 340m/s .what is it's wavelength
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Two closely spaced circular disks form a parallel-plate capacitor. Transferring 1,675,802,144.45 electrons from one disk to the other causes the electric field strength to be 926,331.13 N/C. What are the diameters, in mm, of the disks?
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In terms of drag why do airlines fly at such great heights when it costs morefuel to get up to the higher altitudes?
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A wrestler bench presses 64 kg. If the barbell accelerates upward at a rate of 2.57 m/s2, what is the force exerted by the wrestler on the weights?
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Aliya is rolling along on her 4.0-kg long board with a constant speed of 3.0 m/s when she jumps off the back and continues forward with a velocity of 2.0 m/s relative to the ground. This causes the long board to go flying forward with aspeed of 15.5 m/s relative to the ground. What is Aliyas mass?
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A truck with a gross weight of 22,000 pounds is parked on an angle of d (see figure). Assume that the only force to overcome is the force of gravity.
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When you bring the south ends of two magnets close together, they repel each other.The strength of an electromagnet can be increased by reducing the number of turns on the wire coil.Can you tell me if these are both true or false.
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An ant is sitting on the outer edge of a Compact Disk in a CD player. If the CD has a radius of 0.120 m and the ant has a mass of 0.00411 kg what centripetal force in Newtons will the ant experience if it takes 0.0318 seconds for the ant to complete one revolution? (You do not need to write the unit.)
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An ant is sitting on the outer edge of a Compact Disk in a CD player. If the CD has a radius of 0.120 m and the ant has a mass of 0.00411 kg what centripetal force in Newtons will the ant experience if it takes 0.0318 seconds for the ant to complete one revolution? (You do not need to write the unit.)
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A circuit with a 23 V battery and two 15 resistors in series. What is the current throughout the circuit?
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A ball is thrown horizontally from a window that is 15.4 meters high at a speed of 3.01 m/s. How far will the ball go before hitting the ground?
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What force would be required to start pushing the 100 kg fridge if s = 0.46?
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9, Zach is riding his bike at 25 m/s. He speeds up at a rate of 3 m/s. How fast will he goingafter 3 seconds?
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C. How far horizontally from the cliff will the car land?
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A rock against the frictionless inside wall of a cone with a radius of 2 meters. It moves with the cone with a constant speed of 6m/s. The rock does not slide up or down in the cone as it rotates what is the centripetal acceleration of the rock
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A plane is landing at a speed of 67 m/s when it hits the runway. The plane's brakes provide an acceleration of -1.5 m/s/s for 45 seconds. What distance of runway does the plane need to stop?O2072 metersO89.7 meters1496 meters3138 metersI do not know how to solve this question
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Which of the following changes would increase the force between twocharged particles to 9 times the original force?A. Increasing the distance between the particles by a factor of 3B. Decreasing the amount of charge on one of the particles by afactor of 9C. Increasing the amount of charge on each particle by a factor of 9D. Decreasing the distance between the particles by a factor of 3SUBMIT
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Convert 1500W to horse power.0.497hp2.02hp754hp2250hp
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What causes the particles within the nucleus of an atom to bond together?1) electromagnetism2) gravity3) weak nuclear force4) strong nuclear force
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Two equal, but oppositely charged particles are attracted to each other electrically. The size of the force of attraction is 87.96 N when they are separated by 24.04 cm. What is the magnitude of the charges in microCoulombs ?
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What are some ways that you see matter changing around you? Are they chemical reactions or physicalchanges? How can you tell
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22. A 15-volt battery is connected to a 3.0-ohm resistor, as shown.How much power is used by the resistor?(a) 8.3 W(b) 15 W(c) 45 W(d) 75 W
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True or false. Charged objects attract neutral objects
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A seismic wave has a frequency of 452 Hz and a wavelength of 38 meters. What is the velocity of the wave in the nearest meter per second?
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