25 7. Parallel beam of light incident normally on a wall illuminates a round spot of radius 4.0 cm on it. When a ball, surface of which is mirrored is placed with its centre on the axis of the beam and at a distance of 11 cm from the wall, a large part of the wall is illuminated, but at the centre a fireular shadow of radius 52 cm is formed. Find radius of the ball. Scm

Q: Qlif f Smn lis the Kronec Ker ajency, thentt-Smn =ot when ? Choose the answer

A: By definition of Kronecker delta, δm,n=1 for m=n and 0 for m≠n

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Q: Replace the polar equation r= - 4 sec 0 with an equivalent Cartesian equation. Then identify the…

A: PUT    X =r cosθ             y = r sin θ            x2 + y2 = r2

Q: Evaluate 7 1 5lnx X dx.

A: Take  u = ln(x)  Then   du = dx/x  Integral become.  ∫5udu=5uln5  =5lnxln5

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A:

Q: Radius of face-centered cubic cell is 0.2nm. Find its radius in nm.

A: Given, a = 0.2nm For face-centered cubic cell , 4r = a√2, where a is radius r = a√2/4 = a/2√2

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Q: NAME PERIOD DATE NEWTON'S SECOND LAW LOGIC PUZZLE Jed, Michael, Mehal, Sylvia, and Kinjal attend MR.…

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Q: y h y = b2 h

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Q: "Consider a heat engine with a piston chamber that has a diameter of 30 mm, a cold reservoir at 285…

A: We solve using Ideal gad law, PV = nRT n = PV/RT = 10416* 0.00015/(0.082× 285) = 0.66 moles

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Q: 8 B B 8 B 1. One positively charged object, and one neutral object. 2. One negatively charged…

A: Electric field and lines due to charges.

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A: Viewed from an inertial reference frame (i.e., one without fictitious forces), an object cannot move…

Q: FINAL ANSWER 1. Calculate the electric field experienced by a negative test charge given that the…

A: Solution 1 :- Given data :- Q = 5.00×10-4 Cr = 2.88×10-5 m So the electric field is given by…

Q: 9. A 2.00 kg object has a velocity of 2.00 m/s in the +x-direction. After the force shown below acts…

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Q: Convert the Cartesian equation to a polar equation that expresses r in terms of 0. x² + (y + 5}² =…

A: x2 + (y + 5)2 = 25 To find = polar equaiton

Q: Using your FBD, derive an expression for tan θ in terms of FCoulomb and Fgravity

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Q: Thex Component of a Vctor is 5.0 M/S and The Vctor is dreeted eo° above kr Coordinale (Polir ange or…

A: X component of a vector is 5 m/s  Angle is 60°  Let magnitude of vector be A

Q: Shouldn't r be squared

A:

Q: Data Table: Elongation (cm) (Adding) Elongation (cm) (Subtracting) Mass Added (g) Force Added (N) 10…

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Q: A proton is acted on by a uniform electric field of magnitude 323 N/C pointing in the negative x…

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Q: KI Ni Pind Tf

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A: Given, the linear distance of the moon from Earth = 384000 km           the linear diameter of the…

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A: Given: The number density is 3 cm-3. The solar wind speed is 600 kms. Introduction: Momentum flux is…

Q: Fp B 25 kg 75° A 100 kg

A:

Q: In polar co-rodinate the angle q is usually measured counterclockwise from. positive y axis negative…

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Q: so b= 6.09 s^-2  but you used 5.21. when I plug in the answers its wrong, can you please fix this.

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Q: Show the specific types of energy storage and transfer of a generator set. Time interval includes…

A: Energy is conserved, Generator can convert one form of energy into electrical energy

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A: Introduction Aerial photograph :- An aerial photograph is a photograph taken from an elevated…

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A: Let T denotes the temperature and λ denotes the wavelength corresponds to the maximum emission.

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Q: 2. Given: F, = 40 N, 65° N of E %3D = 45 N, 60° S of E F2 F3 = 40 N, 30° S of E F4 = 45 N, 35° S of…

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Q: Q3. Explain Biot-Savart Law and use this law to find the magnetic field at a point P on the axis of…

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Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.