Ultimate Physics Study Guide - Questions & Answers

Which example shows separation of different wavelengths of light due to diffraction?
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Two students who live on planet X. They want to estimate the circumference. The two students synchronize their watches before one student leaves on vacation 600 miles due west to their home. They notice a 3 degree difference in altitude of the sun at local noon. What is the circumference of the planet?
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The appearance of an element is a
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A 1 meter wide door is initially open at an angle of 30o as shown (top view). You push with 20 N force in the middle of the door as shown and the door rotates around the hinge on the left. The door has a rotational inertia =3.0 kg m2. The angular acceleration of the door will be:
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A 6,000-km undersea glass fiber phone line crosses the Atlantic ocean connecting the US and France. (a) How long does it take for a message to transverse this link? (b) How long does it take for a message to travel from US to France by using a satellite link? The satellite is stationed about 22,000 miles above the earth between the US and France. (c) Will two people having a conversation across these two different links notice the travel delays?
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A nightlight uses 4.0W of power when plugged into an outlet. The current of the circuit is .034A. What is the voltage across the light bulb's filament?
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Where does the rest of the energy 90% go?
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The diagram shows the results when two parents arecrossed. The letters represent alleles for a trait that iscontrolled by three different genes.Which best describes this inheritance pattern?multiple allele because a trait is controlled by three different genespolygenic because the offspring have alleles from both parentsmultiple allele because the offspring have alleles fromboth parentspolygenic because a trait is controlled by three differentgenes
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How do air quality scientists ensure the air is cleaned? What steps do they take?
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A 150 kg box requires a force of 200 N to be pushed across the floor at a constant velocity 2.0 m/s. What is the Normal Force acting on the box?
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what bo you nmean by ABC rule ?
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List of priceless your bodies from largest to smallest in terms of their distance from earth
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How do you describe the frequency of waves perceived by the observer from the moment the source appears to the moment it disappears ?
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Whenever energy changes form, people sometimes say that some energy is "lost." What is meant by this?A. The energy is not truly lost; it transforms into forms that are not easily put to use.B. The process of changing form reduces the total amount of energy in the universe.C. Whenever energy changes form in one location, a corresponding change in the opposite direction must take place somewhere else.D. Sometimes a "mistake" or an inefficiency in the transformation causes energy to be destroyed.
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An ant is on the pendulum bob of a clock. What would be its displacement in one time period?
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Which statement is correct? (2 points)Group of answer choices(A) When a positively charged atom loses an electron to a positively charged atom, two neutral atoms are created.(B) When a neutral atom loses an electron to another neutral atom, two charged atoms are created.( C ) When a neutral atom loses an electron to a positively charged atom, both atoms become neutral.(D) When charged atoms lose electrons they will become positively charged atoms.
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Identify the sentence When you can see both sides of an issue equality well, you find it difficult to take a stand , but some people insist that you take one side or another .
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how light recats with each of diffrent types of space and materials
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What are the three basic parts of a circuit?
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using 15 percent as machine energy efficiency, what is the actual work output if the total work input is 7500 kilojoules?A. 500 kilojoulesB. 750 kilojoulesC. 1,125 kilojoulesD. 7,500 kilojoules
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How much net force is required to accelerate a 50.00kg mass at 4.00 m/s^2
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Select all that apply.The following diagram shows the path of a planet around the Sun. Kepler discovered that _____.A)area A = area BB)the distance from P2 to P3 is half the distance from P5 to P6C)the speed in the interval from P1 to P2 is twice the speed in the interval from P6 to P1D)the speed in the interval from P1 to P2 is less than the speed in the interval from P3 to P4
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How will you determine the directionof a torque? Explain.
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Why are car radiators painted black?
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