An ancient piece of bark is estimated to have originally contained 2.00 µg of carbon-14. Measurements reveal that is currently has 0.25 µg of carbon-14. Write the beta-decay reaction for this process and determine its age.

Q: 33. A uniform ring and a uniform cylinder, each of radius R and mass M, are released from rest at…

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Q: 22:   An AC current source is connected to an inductor with an inductance L = 10 H. At time t = 0,…

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Q: A beam of white light is incident normally on a grating with 1,434 lines per cm. The grating…

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Q: You have a light spring which obeys Hooke's law. This spring stretches 2.44 cm vertically when a…

A: mass m= 2.50 kgspring stretched dx=2.44cm= 2.44/100=0.0244mForce provided by gravity is balanced by…

Q: A transformer is to be used to provide power for a computer disk drive that needs 7.0 V (rms)…

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Q: The flywheel of a steam engine runs with a constant angular velocity of 230 rev/min. When steam is…

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Q: |Problem 1: An inductor with L= 4.5 H is in a closed circuit with I = 0.35 A (see the diagram). When…

A: Given:The inductance: L = 4.5 H;The current flowing in the circuit initially: Ii = 0.35 A;The…

Q: The figure below shows five resistors and two batteries connected in a circuit. What are the…

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Q: The coil in a loudspeaker has 40 turns and a radius of 4.2 cm. The magnetic field is perpendicular…

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Q: George Washington Gale Ferris, Jr., a civil engineering graduate from Rensselaer Polytechnic…

A: Number of cars is Number of passengers in each car is Diameter of circle is The angular speed is…

Q: d sphere with a mass of 12.4 kg and a radius of 0.34 m spins about its center with an initial…

A: The moment of inertia of a solid sphere is I = 0.4MR2

Q: A disk rotates at constant angular acceleration, from angular position 0₁ = 15.0 rad to angular…

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Q: ball is thrown from the ground at an angle of 30 degrees above the horizontal with an initial speed…

A: V = 15 m/s θ = 30 °

Q: 34. How far is the image from the lens? 4.5 cm 4 cm 6 cm 8 cm 12 cm 35. The image is: real and…

A: Object distance, u = 18 cmFocal length of diverging lens, f = - 6 cmSign convention:The sign of…

Q: A long solenoid has a diameter of 17.3 cm. When a current i exists in its windings, a uniform…

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Q: loop if the total magnetic field at the center of the loop is zero? lo 2R clockwise O (3) clockwise…

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Q: 2. A square conducting frame sits in a region which has a magnetic field directed as shown. The…

A: A square conducting frame sits in a region which has a magnetic field directed as shown. The…

Q: The masses are not attached to the spring. The l =g. After releasing the system from rest, the 5.0…

A: Mass of left block, m1 = 5 kgMass of the right block, m2 = 7 kgSpeed of the left block, v1 = -14…

Q: Current Attempt in Progress A uniform cylinder of radius 24.2 cm and mass 24.3 kg is mounted so as…

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Q: ray of light is incident at angle ?θ = 59° on the side of two stacked transparent blocks. The bottom…

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Q: g block is attached to a spring with spring constant 13 N/m. While the block is sitting at rest, a…

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Q: The Sun has diameter 1.4 x 106 km, and it is 1.5 x 108 km away. ▼ Part A How large is the image of…

A: Sun diameter = 1.4×106 km Distance of sun = 1.5×108 km

Q: Q 4(b) Germanium has a band gap of 0.7 eV. If the Fermi energy lies at the valence band, calculate…

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Q: Two charged spheres A (-9nC) and B (+7nC) are separated by 18m with sphere A on the left of B. Find…

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Q: (a) What is the characteristic time constant of a 23.9 mH inductor that has a resistance of 3.89 ?…

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Q: You are training for an upcoming Physics Olympics competition. Your coach gives you the following…

A: In the question it is given that the mass of the indium( 115In) is m=94.1 gInitial activity of the…

Q: Two parallel wires, each carrying a current of 2.2 A in the opposite direction, are shown in the…

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Q: A drill bit is turning at a rate of 1,200 revolutions per minute when the power is suddenly turned…

A: Given Data :Initial angular speed, Deceleration, Final angular velocity,

Q: Drug molecule A is nitially loaded in a cylindrical hydrogel with length of 5 mm and radius of 1 mm…

A: Drug molecule A is initially loaded in a cylindrical hydrogel with length of  and radius of  at an…

Q: 21. An ideal spring with k = 6 N/m is initially compressed 0.40 m. One end is attached to a wall and…

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Q: Max says that x^(2) is always greater than x^(2). Which value of x shows that Max is incorrect?

A: Max is incorrect because   is not always greater than .

Q: IP Consider the two current-carrying wires shown in the figure(Figure 1). The current in wire 1 is…

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Q: cricket ball of mass 200 g is thrown horizontally at a ffxed vertical metal barrier. The cricket…

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Q: A spaceship of mass m travels from the Earth to the Moon along a line that passes through the center…

A: x= distance from the center of Earthm= mass of the spaceship

Q: An inductor is connected to an AC generator. ▼ Part A As the generator's frequency is increased,…

A: If Vr be the rms voltage across the inductor, then the rms current through the inductor will…

Q: A tangential force of 12.4 N acts on the outer edge of a solid cylinder having a mass of 2.2 kg and…

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Q: A = 10 cm² 1500 N/m

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Q: A 60 cm3 block of iron is removed from an 800∘C furnace and immediately dropped into 200 mL of 20∘C…

A: Volume of iron block Density of iron Mass of water Let be mass of vaporized water.Specific heat of…

Q: An observer on Earth observes Planet X to be 24 light-years away and stationary. An observer in a…

A: The distance measured  by the observer on the Earth is The distance measured by the moving observer…

Q: A circular loop of diameter 14.7 cm is carrying a current of 3.8 A. What is the magnitude of the…

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Q: The diagram below shows how far apart two beams of radiation must be placed so that they will not…

A: The given diagram shows how far apart two beams of radiation must be placed so that they will not…

Q: A 4.00 x 105 kg subway train is brought to a stop from a speed of 0.500 m/s in 0.600 m by a large…

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Q: 2. In a single-slit diffraction experiment, if the width of the slit is increased, the li attern…

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Q: initial speed of 4 m/s. The ball travels a distance of 10 meters before coming to a stop. How long…

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Q: A bicycle tire has a pressure of 7.80 ✕ 105 N/m2 at a temperature of 15.0°C and contains 2.40 L of…

A: Initial pressure, Pi = 7.80×105 N/m²Temperature, Ti = 15° C = 288.15 KVolume, Vi = 2.40 L =…

Q: 41. What is the magnitude of displacement from t = 0 to 4 seconds? a) 1 m b) 2 m c) 3 m d) 4 m e) 5…

A: The displacement is the sortest distance between the initial position and final position. The…

Q: (numbers 49-50) A 0.1 kg bullet initially travels at 200 m/s before striking the edge of a uniform…

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Q: 3. The diagram below displays the deviation in displacement with time for an object with mass m…

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Q: A ray of light strikes the midpoint of one face of an equiangular (60°–60°–60°) glass prism (n =…

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Q: -μC particle moves through a region of where an electric field of magnitude 1250 points in the…

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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.