I. Akasaki, H. Amano and S. Nakamura w ere awarded the Nobel Prize in Physics in 2014 due to their results of GaN. Please provide the understandings why GaN is an important material.

Q: 12. A 200 N block is pulled by a constant force of P=50 N as shown. The block initially at rest, att...

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Q: A uniform disc of radius R and mass m is connected to a wall by string oflength 2R. The normal react...

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Q: each A morc hine gun fircs 14 bullets s, t mags 18 1,-the speed to each bullets is 26cmls,Then force...

A: Given data :                    Number of bullets   =   N                   Speed   of   each  bulle...

Q: envelope of a sinusoidally amplitude modulated carrier wave varies from a maximum value of 4V to a m...

A: Given Emax  = 4 V Emin  = 1 V  

Q: The current I flowing rightward through inductor L is at a steady rate of 0.1280 A/s. The magnitude ...

A: GivenThe steady rate of flow of current ,dIdt=0.1280  A/sεL=0.0160 V

Q: Given the electric field is being produced by a uniform infinite line charge, the potential differen...

A: Answer:- (a) The charge being moved from the initial to the final position.    Given the electric fi...

Q: 10. A rollercoaster is at the inside top of a a circular loop of radius R=150m. How fast must the ro...

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Q: figure below. The +- 5.00 µC charges form a dipole. Find the force (magnitude and direction) the- 10...

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Q: Positive charge Q is distributed uniformly along the positive y-axis between y=0 qnd y=a. A negative...

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Q: A 4.0 kg mess kit sliding on a frictionless surface explodes into two 2.0 kg parts, one moving at 2....

A: Given: The mass of the mess is 4  kg. The mass of each fragment is 2 kg. The final velocity of the f...

Q: Three charges Q,+q and + q are placed at the vertices of a right-angle isosceles triangle as shown b...

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Q: 1. A ray of light from within the diamond towards air, what is the angle of refraction if: a. the an...

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Q: Which Of The Following Running Speed Is The Fastest? Student C: 100 In/S Student A: 2 M/S Student D...

A: SI unit of speed is m/s We need to convert all given data into m/s We know 1 inch = 0.0254 m 1 mile ...

Q: Magnetic fields are directed away (outward) from north magnetic poles and inward toward south magnet...

A: We need to find the position of magnetic north.

Q: A puma can jump to a height of 11.0 ft when leaving the ground at an angle of 45.0°. With what speed...

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Q: An empty truck, which has the mass of 15001500 kg, rolls with a speed of 3.43.4 m/s under a loading ...

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Q: 3.38 Mercury is poured into the tube in the figure until the mercury occupies 375 mm of the tube's l...

A: Given: Mercury is poured in this tube.  Length of mercury column is 375 mm After that, equal volume...

Q: Molecules of carbon monoxide are permanent electric dipoles due to unequal sharing of electrons betw...

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Q: Two gasbags are charged at the same time and with the same amount of 4.35 micro C. They are 56.90 cm...

A: Given, amount of charge on the gasbags, q = 4.35 μCseparation between the charges, r = 56.90 cm = 0....

Q: What is the strength of the electric field at the position indicated by the dot in the figure? Expre...

A: Electric field due to point charge E = kq/r2  if two or more than two electric field acts at a point...

Q: The 3 m long uniform plank is supported by a fulcrum at the midpoint. Where should a 45 kg student m...

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Q: The three forces represented in the figures shown act on a model of a space-X rocket while it sits o...

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Q: If you drop an object, what is its speed at the instant you let go of it?

A: This is an example of free fall motion. During free fall motion initial speed of the object is alway...

Q: A8.99 uF capacitor is connected in parallel with a 9.00 Vand a 4.66 uF capacitor. Once the capacitor...

A: Charge is divided between the capacitors connected in parallel in the ratio of their capacitances. T...

Q: The angular velocity of a rotating disk with a radius of 4 m decreases from 6 rads per second to 3 r...

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Q: Using a constant 4.5 V source, three bulbs, wires, and a single throw switch design a circuit that w...

A: We can connect the bulb either in series or in parallel or combination of these two. 

Q: Former prince Harry's child is riding on a dangerous, old-fashioned, playground merry-go-round which...

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Q: The potential field in a region in vacuum is y=rty+z volts. Find the total potential energy stored i...

A: The potential field in a region in vacuum is given as                          V = x+y+z V Now we ha...

Q: a) Calculate the speed of a tsunami (in meters per second), assuming an average ocean depth of 4000m...

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Q: Two identical capacitors are connected in series and two, each identical to the first, are connected...

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Q: Positive charge Q is distributed uniformly along the positive y-axis between y=0 and y=a. A negative...

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Q: In liquid A, a body floats with 9/10th of its volume immersed, while in liquid B it floats with 3/5t...

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Q: A ball of mass 160 g is thrown up at an angle of 60° to the horizontal at a speed of 10 ms. The angu...

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Q: In a storm of 210 minutes duration, the incremental rainfall at various time interval is given below...

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Q: Caitlyn decides to test her strength to see if she is as strong as she was when winning Olympic gold...

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Q: a standing wave in a clothesline has 10 nodes and 9 antinodes. the clothesline is 8.46m long and is ...

A: As given, Standing wave has 10 nodes and 9 antinodes.  Frequency, f=1.71 Hz Length of clothesline, L...

Q: Using a constant 4.5 V source, three bulbs, wires, and a single throw switch design a circuit that w...

A: For the bulb A to remain on independent of the switch position, it should be directly connected to t...

Q: Explain how does the experimental tume of light change as the augle incresses

A: Let us say we have a projectile which is projected with some initial velocity u making an angle θ wi...

Q: A car is fitted with a convex side-view mirror of focal length 20 cm. A second car 2.8 m behind the ...

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Q: The inductance of a tuning circuit of an AM radio is 4 mH. Find the capacitance of the circuit requi...

A: At resonance condition  Frequency f = 1/2*pie*(LC)1/2. Where L = inductance C= capacitance From give...

Q: Two resistors are connected in parallel with a 9.00-V battery Complete the table below. For all the ...

A: In parallel combination potential difference remains same 

Q: A uniform solid sphere rolls without slipping down a 27° inclined plane. What is the acceleration of...

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Q: metal Sphere weigh whose diameter em 2000N. How mueh would this sphere veigh if placed ;a water (den...

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Q: 3. A 0.5-lb slider moves along a semicircular wire in a horizontal plane as shown. The undeformed le...

A: In the presence of conservative forces the sum of  kinetic energy and potential energy remains const...

Q: Calculate the magnitude of the tension T and the angle O for which the eye polt will be under a resu...

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Q: During the lift off of a spacecraft, it gains speed and increases its kinetic energy immediately. Wh...

A: As the planet moves away from earth surface then it's gravitational potential energy continuously in...

Q: A finite line charge located at (0, y, 0)m, where a < y< b, has a line charge density of electric fi...

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Q: . A microscope is sharply focused on a mark at 5.7 cm. If a parallel plate of glass is placed over t...

A: Given, A microscope is sharply focused on a mark at 5.7 cm. Refractive index of glass = 1.52  So, Ac...

Q: Prove the well-known result that, for a given launch speed vo, the launch angle 0 = 45° yields the m...

A: The horizontal range of the projectile only depends on the initial velocity and the launch angle. We...

Q: Use vectors to find the lengths of the diagonals of the parallelogram that has i + j and i – 16j as ...

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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.