Master Physics with Fun Quizzes & Brain Teasers!

1 secondWhat is the frequency of this wave?O 102O 3O4
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Two projectiles a and b are thrown with same speed but at angle of 40 and 50 with the hohorizont. The horizontal range of A will be?
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6 Fig. 6.1 is a full-scale diagram that represents a sound wave travelling in airdirection of travelFig. 6.1(a) On Fig. 6.1, mark two points, each at the centre of a different compression. Label both of thepoints C.(b) The speed of sound in air is 330 m/s.Measure the diagram and determine the frequency of the sound.
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Which statement is true regarding the circuit schematic below?A. The resistor is connected near the negative terminal of the battery.B. At the present time, the circuit is complete.C. This is a direct current circuit.D. This is an alternating current circuit.
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Which element is likely more reactive, and why?Element 1 is more reactive because it has fewer electron shells and is toward the top of its group on the periodic table.Element 1 is more reactive because it has more electrons in its valence shell and is farther to the right on the periodic table.Element 2 is more reactive because it does not have a valence shell close to the nucleus, so it will attract electrons.Element 2 is more reactive because it does not have a full valence shell, so it will attract electrons
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Eugene works at a carpet factory. Which natural polymer does he most likely work with to make the carpets?woolrubbernylonsilk
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What experimental evidence led to the development of this atomic model from the one before it?A few of the positive particles aimed at a gold foil seemed to bounce back off of the thin metallic foil.Experiments with water vapor showed that elements combine in specific proportions.Equations were used to identify regions around the nucleus where electrons would likely be.Cathode rays were bent in the same way whenever a magnet was brought near them.
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Match the property of a sound wave to the correct definition.
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An object experiencing uniform circular motion is accelerating. t/f
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how can you convert 54 grams to kilograms
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30cm^3 of air in a syringe is at a temperature of 62 C and a pressure of 12.6 10^4 Pa. Calculate the new pressure if the air is compressed to 9.0 cm^3 and the temperature is kept constant
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Does mars have comet please don't loo k up the answer
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Physical ScienceThe sun is composed mainly of oxygen.O TrueO False
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derive equation of motion s=ut+1/2at
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PLz halp meh What benefits do sports provide to athletes of all abilities?THIS IS FROM THE TEXT: The Dream Team*Language Arts:)
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PLEASE HELP ASAP!! :')Hillary is presented with a piece of metal and asked to determine its physical properties. Which of the following groups does not represent the physical properties of the metal Hillary was given?Group of answer choicessoluble in water and high melting pointmalleability and reactivitymagnetism and low melting pointthermal conductivity and electrical conductivity
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What does Supernova mean?
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Question 10 (1 point)The Continental Polar air mass exists in the middle upper part of the US in thisimage. What are its main characteristics?Choose ALL that applyLesson 1.07Cold dry air massForms over landMoist air mass
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Graphs often permit scientists to make estimations for items when there is no data. Please select the best answer from the choices provided
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What best describes electrons
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How does a pulley help transfer mechanical energy?A. It spreads the load out over two sides, making the load feel lighter.B. It shifts the load to one side so the load is only heavier on one side instead of both.
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1)A balloon becomes negatively charged with an excess of 210 electrons what is the charge in Coulombs of the Balloon? 2) The same balloon is then rubbed against a sweater its new charge is -5.664 x 10-17. How many excess electrons does the balloon now have? 3) Did the balloon gain or lose electrons? HOW DO YOU KNOW?
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Helpppppp!!!! Which of the following are examples of work being done on an object? Choose all 4 that apply. A. Carrying a box up a flight of stairs.B. Wind blowing against a tree.C. Lifting a bag of groceries. D. Holding a 45 kg barbell over your head.E. Lifting a rock off the ground.F. Pushing a grocery cart through the store.G. Carrying a bag of groceries through the store. H. Pushing on a car that will not move.Thanks in Advance!!
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Many amateur astronomers start out with a 4-inch (aperture) telescope and then graduate to a 16-inch telescope. By what factor does the light-gathering power of the telescope increase with that upgrade
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