Physics Homework Answers & Questions Page 46

• How do we represent the magnitude of a vector in physics?

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• A red car and a green car move toward each other in adjacent lanes and parallel to an x axis. At time t = 0, the red car is at xr = 0 and the green car is at xg = 216 m. If the red car has a constant velocity of 27.0 km/h ?

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• What is 25 mi/hr converted to m/min?

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• Use Coulomb\'s Law to calculate the energy of a copper ion and an oxide ion at their equilibrium ion-pair separation distance?

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• What is an inelastic collision and its formula? Thanks in advance!

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• What is momentum? (Please don't limit it by saying that it is ##m*v##. At least tell what this formula means.)

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• What is the difference between linear velocity and angular velocity?

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• How does the radius affect the moment of inertia?

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• What are quarks made of?

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• What is the right hand rule?

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• What is the long definition of rotational motion? What are the other types of motion?

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• A desk measures 42 inches long. How many meters is that?

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• What two things does gravitational potential energy depend on?

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• How to calculate mechanical advantage of a third-class lever?

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• An iron wrench (density = 7800 kg/m3) feels 3N lighter in water. (a) What is the mass of the wrench? (b) How would your answer change if it took a denser fluid to make the wrench feel 3N lighter?

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• What are all the Physics Formulas (Newtonian Mechanics)?

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• A car possesses 20,000 units of momentum, whats the cars momentum if its velocity is doubled? tripled?

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• Why potentiometer be preferred over a voltmeter for measurement of emf of a cell.?

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• How does specific heat of metal compare to that of water?

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• How are electric forces and charge related?

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• What is the force, in terms of Coulomb's constant, between two electrical charges of ##44 C## and ##39 C## that are ##12 m ## apart?

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• If a series–parallel circuit has all 30-ohm resistors, what is the total resistance when r1 is in series with a parallel circuit consisting of r2 and r3?

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• How does polarization show that light is a transverse wave?

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• How is Coulomb's law similar to Newton's?

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• What is the force on a 1000 kg elevator that is falling freely at the acceleration of gravity?

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• The speed of sound in water is 1430 m/s. What is the wavelength of a sound with a frequency of 286 Hz traveling through the water?

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• Explain what happens waves undergo constructive interference

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• What is the Doppler shift, and why is it important to astronomers?

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• Acceleration due to gravity on Mars is about one—third that on Earth. Suppose you throw a ball upward with the same velocity on Mars as on Earth. How would the balls maximum height compare to that on Earth?

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• How can i calculate voltage drop in a parallel circuit?

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• Can you describe the difference between the coefficient static friction and kinetic friction by using examples?

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• How do a wheel and axle work?

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• How to prove the thin lens equation, geometrically?

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• What is the physical significance of divergence theorem?

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• What are the SI units for gravity, charge, potential difference , voltage, and electric field?

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• How do you calculate the mechanical energy of an object?

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• What is the equation for Snell's law?

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• What is latent heat of fusion?

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• Explain relative velocity of man with respect to rain?

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• What is the mass in kg of a person who weighs 185 pounds?

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• How to convert grams into kilograms?

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• How can i calculate the radius of gyration K of a compound pendulum?

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• How does Newton's second law include the first law?

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• How do you convert feet into meters and centimeters?

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• What does wavelength, frequency, and inverse relationship mean?

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• What is the relationship between linear speed and angular speed?

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• What does a velocity vs. time graph show?

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• The resistance of a conductor is 5 ohm at 50*c and 6 ohm at 100*c.Its resistance at 0*is??THANK YOU!!

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• A punter in a football game kicks a ball from the goal 60° from the horizontal at 25 m/s. What is the hang time afthe punt, and how far down field does the ball land?

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• A marathon is is about 26 miles. How many kilometers are equal to 26 miles?

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