A marathon runner averages 9.4 mi/h. How long does it take them to run a 26.00-mi marathon in hours? Hint The time it takes to complete the marathon is h. Enter an integer or decimal number, with exactly 2 significant figures [more..]

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Q: If the potential due to a point charge is 520 V at a distance of 15 m, what are the sign and…

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Q: A truck travelling west at 60 m/s sounds it's 440 hz horn as it passes a stationary observer. What…

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Q: Two charged spheres are placed as shown above. The size of the sphere represents how much charge it…

A: Note:- The electric field created by a positive point charge is a vector field that points radially…

Q: A test charge of +2μC is placed halfway between a charge of +6μC and another of +4μC separated by…

A: Charges ,  and  are placed in a straight line.The distance between charges  and  is The charge  is…

Q: A test charge of +2μC is placed halfway between a charge of +6µC and another of +4µC separated by…

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Q: The speed of the wave motion is 7.5 m/s and the frequency is 11 Hz. Calculate the phase difference…

A: The objective of this question is to calculate the phase difference between two points on a wave…

Q: The position of a particle moving along the x axis is given in centimeters by x = 9.70 + 1.53 t3,…

A: Position of a particlex = 9.70 + 1.53t3Required:Average speed during t=2.00 s to 3.00 sInstantaneous…

Q: A DROP OF CHARGED OIL WITH RADIUS R = 2.76 μm AND DENSITY ρ=920 Kg/m^3 IS KEPT IN EQUILIBRIUM UNDER…

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Q: One type of ink-jet printer, called an electrostatic ink-jet printer, forms the letters by using…

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Q: (a) Calculate the strength and direction of the electric field, E, due to point charge of 2.2 nC at…

A: Solution:Given:k = Coulomb's constant = 8.99 x 109 N.m2/C2  q1 = first point charge = 2.2 nC = 2.2 x…

Q: 3. The compass needle can rotate on a pivot in a horizontal plane. If a positively charged rod is…

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Q: In a simplified model of a hydrogen atom, the electron moves around the proton nucleus in a circular…

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Q: What thermodynamic quantity is held constant in Boyle's law?

A: Boyle's Law states that when the temperature is constant, the pressure and volume of a gas are…

Q: The plates of an empty parallel-plate capacitor of capacitance 5.2 pF are 2 mm apart. What is the…

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Q: A projectile with mass 7 kg is fired from a catapult at an enemy's castle. The position of the…

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Q: A woman stands a distance d from a loud motor that emits sound uniformly in all directions. The…

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Q: 3. LO 4: Consider the two cases shown below. In both cases a central charge q has two charges of…

A: The force on charge q in case (a) due to the other charges is shown in the below figure,As the…

Q: One barn, a unit used for cross sections in nuclear and particle physics,  is equal to 10-28 square…

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Q: Specify the magnitude and direction angles a₁, B₁ and ₁ of F₁ so that the resultant of the three…

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Q: 1.0p Spherical metal conductors ES Initial Configuration. Touching Final Configuration 6a A…

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Q: A 32.0-cm-diameter circular loop is rotated in a uniform electric field until the position of…

A: Data provided:Diameter (d) = 32.0 cm = 0.320 mMaximum electric flux (Φ) = 5.8×105…

Q: ** 8. In the following three formulas, x is a distance in meters, v is a velocity in m/s, and a is…

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Q: -4.00 nC and +4.00 nC are separated by distance 3.80 Point charges mm, forming an electric dipole. Y…

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Q: At what temperature is the speed of sound in helium (ideal gas, y = 1.67, atomic mass = 4.003 u) the…

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Q: 500mA of a current is flowing through a filament of a lightbulb. How many coulombs of charge move…

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Q: Two charges are placed on the x-axis, +3.00 µC at the origin and -10.0 µC at x = 10.0 cm. Define the…

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Q: (2) Poseidon will scoop the earth’s sea water with a tablespoon and throw out into outer space, once…

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Q: Consider a point charge q located outside a closed surface as sketched in blue in the figure below.…

A: According to Gauss law, the total flux linked with a closed surface is 1/ε0 times the charge…

Q: A particle with charge q₁ = = +4.7 μc is located at (x=0,y=0). A second particle with charge 92 is…

A: The diagram is shown below

Q: An ant zig-zags back and forth on a picnic table as shown. 0 10 20 30 40 50 x (cm) The ant's…

A: From the figureThe initial position of the ant is And then it travels towards left and its position…

Q: The speed of a transverse wave on a string is 464 m/s, while the wavelength is 0.209 m. The…

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Q: Electron transfer 2 A charge Q is transferred from an initially uncharged plastic ball to an…

A: Given data, given distance is r = 16 cm.The force of attraction, given as F = 42.14 mN.

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A: Initial moment of inertia is Final moment of inertia is Find:The ratio of final rotational energy to…

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Q: The protons in a nucleus are approximately 2 x 10-15 m apart. Consider the case where the protons…

A: The distance between two protons is Note:Charge on one proton is Coulomb constant is Find:The…

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Q: Two identical pellet guns are fired simultaneously from the edge of a cliff. These guns impart an…

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Q: two 1.20 m nonconducting rods meet at a right angle. one rod carries 2.50 mc of charge distributed…

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Q: Mountain highways with long descents have “escape” roads with  a steep incline for vehicles to take…

A: Angle, θ = 49°Mass, m = 20,000 lbSpeed, v = 64 mph = 64×0.447 mph = 28.61 m/s

Q: Three point charges are located on a circular arc as shown in the figure below. (Take r = 4.12 cm.…

A: We will use the formula of the Electric field and some knowledge of vectors to answer this question.

Q: (c) Calculate the magnitude of the force on the charge q, given that the square is 10.0 cm on a side…

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Q: e electric field vector at the black dot?

A: In the diagram given below

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Q: A mass of 0.40 kg, which is resting on a frictionless horizontal surface and attached to a spring…

A: M = 0.40 kgK = 40 N/mX = 0.25 m

Q: A hot air balloon has just lifted off and is rising at a constant rate of 2.0 m/s. Suddenly one of…

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Q: 26.10 The following pairs of materials were rubbed together and the sign and approximate magnitude…

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Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.