Ultimate Physics Study Guide - Questions & Answers

The drawing shows two identical airplanes at an air show. The airplanes are flying at the same speed. Airplane W is flying 50 m higher than airplane X. Which statement best describes the energy of the two airplanes?
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What determines the paths of electrons around a nucleus?a. the fundamental quantum of energyb. interaction with other atomsc magnetismd. the number of neutrons in the nucleus
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Suppose you are given two clay balls of equal size and shape. The two clay balls also weigh the same. One ball is flattened into a pancake-shaped piece. Which of these statements is correct and why?
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The public is not yet able to purchase cars powered by hydrogen fuel cells because engineers have to determinhow the cars perform based on which scenario?on racetracks
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Suppose you are standing on a scale in an elevator that is accelerating upward. Will the scale read your weight as larger for smaller than the weight it reads when you are stationary?
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PLEASE SOLVE FAST!!! If the average American watches hours of TV every day , how many minutes will be spent in front of the TV by a person's 65th birthday? Solve using Dimensional Analysis.
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Using component notation, enter the vector B BB_vec in the answer box. Enter your answer as a pair of vector components, separated by a comma. You should not enter any parentheses.
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Sophia pushes with a 40-N horizontal force on a 4.0-kg box resting on a lab bench. The box slides against a horizontal friction force of 24 N. show that the box acceleration at 4.0 m/s2
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2. Does the emphasis on safety vary for each style of vehicle? In what way?3. Does the level of safety equipment vary with price of vehicle?4. What effects will a vehicles top speed, power and acceleration likely to have on safety? Is this considered in the advertisements?WILL MARK BRAINLIEST IF CORRECT
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A car pulling out of a gas station accelerates from rest at a constant rate it covers 1200 meters in 30 seconds. What is the rate of acceleration
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a ship travels from savannah georgia to lisbon spain at a rate of 27.6 miles/hour. if the distance covered is 3982 miles how long did the trip take
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Select all the correct statements that are always true about conductors. a. A conductor in an electric field becomes polarized. b. In electrostatic equilibrium, the electric field inside a conductor should be zero. c. In electrostatic equilibrium, the electric field inside a conductor should be infinite. d. In electrostatic equilibrium, the electric field must point outward from the surface of the conductor. e. In electrostatic equilibrium, the electric field must point inward from the surface of the conductor.
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The earth has a mass of, MEarth=6.4 X 1024 kg and a radius of REarth= 6.0 X 106meter and it has acceleration due to gravity, gE = 9.8 . One of Jupiters moon also has MJmoon = * MEarth =3.2 x 1024 kg with a radius of, RJmoon = * REarth =3.0 x 106 m and gJmoon value unknown. From the information, what is acceleration due to gravity of Jupiters moon, gjmoon, comparing to the earths acceleration due to gravity, gEarth?
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Vector A has a magnitude of 6.0 m and points 30 north of east. Vector B has a magnitude of 4.0 m and points 30 west of south. The resultant vector A+ B is given by
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WHAT IS ACCURACY, PRECISION, AND REPRODUCIBILITY? AND WHY ARE THEY SO NECESSARY IN CONDUCTING/DESIGNING EXPERIMENTS? 30 POINTS AND WILL MARK BRAINLIEST
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Water enters a 2 m3 tank at a rate of 6 kg/s and is withdrawn at a rate of 2 kg/s. The tank is initially half full. What type of process is this?
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Question 1 of 15All digits shown on the measuring device, plus one estimated digit, areconsideredAnswer hereSUBMIT
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Predict how the total pressure varies during the gas-phase reaction 2 ICl(g)+H2 (g)I 2 (g)+2 HCl(g) in a constant-volume container.
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Scott travels north 2 miles and then goes west 5 miles before coming straight back south 7 miles what is his displacement
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a phosphorus atom needs to gain ---electrons to achieve a full octet
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A negative charge -Q is placed inside the cavity of a hollow metal solid. The outside of the solid is grounded by connecting a conducting wire between it and the earth. Is any excess charge induced on the inner surface of the metal? Is there any excess charge on the outside surface of the metal? Why or why not? Would someone outside the solid measure an electric field due to the charge -Q? Is it reasonable to say that the grounded conductor has shielded the region outside the conductor from the effects of the charge -Q? In principle, could the same thing be done for gravity? Why or why not?
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Apply the general results obtained in the full analysis of motion under the influence of a constant force in Section 2.5 to answer the following questions. You hold a small metal ball of mass a height above the floor. You let go, and the ball falls to the floor. Choose the origin of the coordinate system to be on the floor where the ball hits, with up as usual. Express all results in terms of , , and . Just after release, what are and
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A beam of protons is directed in a straight line along the positive zz direction through a region of space in which there are crossed electric and magnetic fields. If the electric field magnitude is E=450E=450 V/m in the negative yy direction and the protons move at a constant speed of v=7.9105v=7.9105 m/s, what must the direction and magnitude of the magnetic field be in order for the beam of protons to continue undeflected along its straight-line trajectory? Select the direction of the magnetic field BB .
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Streams compensate for changes in their systems by adjusting other factors in order to return to _______
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