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Q: An electron is emitted in beta decay of radioactive caesium. It has mass and is moving with a speed...

A: speed of light (v) = 0.8 cspeed of light (c) = 3×108 ms  

Q: Simplify the following quantities using a unit with an appropriate prefix: a. 6.5x1010 s  b. 8.96x...

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Q: force of 2 pounds stretches a spring 1 foot. A mass weighing 3.2 pounds is attached to the spring, a...

A: We know that the spring force is given as  F = kx  where  k is the spring constant  x is the displac...

Q: A pilot is required to fly directly from London, UK, to Rome, Italy in 4.5h. The displacement is 1.7...

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Q: the figure here, a ball is thrown up onto a roof, landing 4.10 s later at height h = 20.0 m above th...

A: given time taken,T= 4.10 sec  height ,H= 20.0 m  angle ,2 = 68.0 degree  initial angle, 1= ?? initia...

Q: Q) If the velocity of blood flow in the aorta is about (0.32 m/s) , what pulse frequency would you e...

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Q: Q.1 L- Shape slender bar is pivoted at point O as shown in fig. Find the Natural frequency of angula...

A: Moment of inertia of the above L-shaped slender:- I= I1 + I2 = mL2/3 + mL2/3 = 2mL2/3 COM of rod-1:-...

Q: What exactly is a solid state disc?

A: The solid state drive is much similar to a thumb drive technology. It is a storage device that store...

Q: 1. The block in the figure to the right remains motionless against the wall because of an applied fo...

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Q: What happens to the light bulb if the magnet moves in and out of the coil of wire? If a magnet is in...

A: 1.  When the magnet moves in-and-out of the coil of wire The magnetic flux inside the loop changes. ...

Q: A boat, 100m from the point where the projectile was shot, moves with a constant velocity of 6m/s. F...

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Q: an object that is 2 cm tall is placed 5 cm to the left of a lens and produces an image that is 7.5 c...

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Q: A helicopter flying with a velocity of 160km/h at elevation 500m above sea level dropped supplies to...

A: Given data-                           helicopter's elevation from the sea level (y1) = 500 m        ...

Q: An 1200 kg car and a 2000 kg truck move toward one another, both traveling at 15 m/s. a) In what dir...

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Q: A rod has uniform charge density ^=ro in the interval -L L. b) Examine the result for xo goes to inf...

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Q: 7. Given are 4 points in space: (x,y,z) A (3,2,3) B (0,1,4) C(2,4,1) D(0,5,4) The line of action of ...

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Q: 8. The law of attraction and repulsion is observed in electrostatic induction. 9. The field lines ar...

A: Ans-8   TRUE The magnitude of the electrostatic force F between two point charges q1 and q2 is direc...

Q: A block of mass m= 3.50 kg oscillates on a flat horizontal frictionless surface, under the action of...

A: Given Data: The mass of the block is: m=3.50 kg The elastic constant of spring 1 is: k1=1.00 N/m The...

Q: 1. Two equal positive charges q1 = q2 4.0 µC are located at (2.40 m, 0) and (- 2.40 m, 0), respectiv...

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Q: Fill in the table Lesson: Atwoods Machine Compute for : %eacceleration, %egravity, gexperimental ...

A: % error = aexp -atheoreticalatheoretical×100 Atwood machine consist of two blocks connected with a r...

Q: In the figure shown, the load needs to be raised 28 ft. Noting that Gear A is initially at rest and ...

A: Calculate the angle change for B.

Q: 1. When an ammeter is inserted in the circuit, the circuit current will A. increase B. decrease C. r...

A: 1) option (B) . Decreases Reason-1) An ammeter is always connected in series with the circuit. 2)An ...

Q: The velocity of a body of mass 20 kg increases from 5 m/s to 20 m/s in a distance of 100 m. The forc...

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Q: À prism is made of glass of unkown refractive index. A parallel beam of light is incident on a face ...

A: Minimum angle of deviation δm = 40° Angle of prism A = 60° Refractive index of water μw = 1.33 Let R...

Q: Q13 2.50 x 10-5С Q23D -2.00 х 10-5С %3D P. 15 ст 10 ст

A: Q1 = 2.50×10-5 C Q2 = -2×10-5 C distance between the two charges = 15 cm distance between Q1 and P =...

Q: a) Describe the basic principles of the tight-binding approximation for bandstructure calculations. ...

A: Ans - In solid-state physics the tight binding model (TBM) is an approach to the calculation of the ...

Q: The graph shows the force-time graph for a cart on a track (albeit a somewhat unrealistic one since ...

A: In this question we have been given with a graph for the motion of a cart and we have to answer some...

Q: Consider a three layer symmetric waveguide.  In the following cases, explain if the number of modes ...

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Q: Question 1 A body slipping on a rough horizontal plane moves with a deceleration of 4.0 m/s?. What i...

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Q: A group of backpackers, after three days hiking, are 30.0 km north of their starting position. On th...

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Q: A 2.5 kg toy car accelerates from rest to a velocity of 2 m/s in 9 seconds. The work done by the eng...

A: Given: The mass of the object is 2.5 kg. The initial velocity of the object is 0 m/s. The final velo...

Q: What will be the change in the electric field, if work unchanged and distance change to ½.

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Q: 8. What is the magnitude of the electric field due to Q1 at the point P O -1.908x10^(6) N/C O -1.908...

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Q: Block A weighing 25 N collides with block B, which is at rest, with a speed of 30 m/sec. Block B wei...

A: Write the given data. mA=25g kgmB=10g kgvAi=30 m/svBi=0

Q: If a species evolved in order to see white tissues of the body, which wavelength do they have recept...

A: We can answer the first question since the exact one is not specified. Please resubmit the question ...

Q: A softball of mass 0.200 kg that is moving with a speed 10.3 m/s collides head-on and elastically wi...

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Q: Question 24 Find the acceleration due to gravity in a mine of depth 640 m if the value at the surfac...

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Q: 8 kN/m 12 kN • m OB e 5 m- - 3 m

A: Draw the free-body diagram of the beam.

Q: The third harmonic frequency of a standing wave is 285 Hz on a string of length 73 cm that is bound ...

A: Let the speed of travelling wave be v According to the question length of the string L=73 cm =0.73 m...

Q: Jene is rearranging her furniture. She pushes her 400.0kg couch with a force of 300.0N at 30.00 from...

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Q: A block of iooo d of mas8 350g is moring at a speed ofs Fin d its kE in Joules. ms

A: Given data :                       Mass  =   m                    Velocity  =  v          To find : ...

Q: 1. A point charge ql = -6.0 µC is at the point x = 1.20 m, y 0.50 m and a second point charge q2 = -...

A: Given data: The given charges are, q1=-6 μCq2=-5 μCq3=-2 μC

Q: In laser eye surgery, each laser pulse has power of 70 kW.  The beam focuses on a circle of 0.5 mm r...

A: GivenPower of each Laser pulse ,P=70 kWRadius of circle ,r=0.5 mm

Q: How long must a tow truck apply a force of 600 N to increase the speed of a 1,500 kg car at rest to ...

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Q: ass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. Initially, the mass ...

A: Given  Weight ,W = 24 pound  g = 32ft/s2  Equilibrium position, X = 4 inches  Initial position, 8 in...

Q: Question: The Velocity of the block Shown at Point A, is c1o m/s), find it's Velocity as it Pa3s Poi...

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Q: The 500 N weight is supported by two cables, the cable forces being Fi & F2. Knowing that the result...

A: Weight of block = 500 N  Force due to strings are F1 and F2 . 

Q: James throws a ball at an initial velocity of 9.2 m/s at an angle of 6.6 above the horizontal. What ...

A: Given: Initial velocity u=9.2 m/s Angle θ=6.6 To find: Maximum height Hmax=?

Q: 4. A plane traveling at 192 km/h [N] is blown eastward by the wind with a speed of 56.0 km/h. What i...

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Q: A 5.0 kg mass starts from rest at the top of an inclined plane 0.95 m long and slides down to the bo...

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Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.