Discuss how the LED operates; cite some of its internal structure that enables it to emit light.

Q: Q7. Calculate the equivalent resistance of the circuit below. R = 20 2 R2 = 15 Q %3D %3D R5 = 8 0 R4…

A: We have a circuit with a battery of voltage V=12 V and five resistors R1=20 ohm, R2=15 ohm, R3=20…

Q: A mirror produces an image that is located 38.0 cm behind the mirror, when the object is located…

A:

Q: t is the rate of flow of electrons thru a conductor in a close circuit. Select one: a. potential…

A: Let's check each option one by one a. Potential difference  Incorrect  potential difference between…

Q: A conical pendulum consists of a bob (small mass at end of massless rope) that moves in a horizontal…

A:

Q: A spring oriented vertically is attached to a hard horizontal surface as in the figure below. The…

A:

Q: You have a capacitor that's discharging through a resistor toward zero voltage. What fraction of the…

A: We have a capacitor that is  discharging through a resistor. We want to find relation between…

Q: 122 8Ω ww ww 152 a 10 Ω I + 50 V

A:

Q: Based on the circuit shown below, what is the total current in the circuit?

A: We first find the total resistance in the circuit and use it to solve for the current in the…

Q: Question -  An oil droplet is sprayed into a uniform electric field of adjustable magnitude. The…

A:

Q: Two objects are located along the y-axis. Object A has a charge of +25 µC and is located at the…

A:

Q: A 50.0-kg person jumps onto the floor from a height of 2.7 m. If he lands stiffly with his knee…

A:

Q: 13.8 A particle moves along a plane curve from a point O to a point B. The path length between O and…

A:

Q: For the optical fiber shown in the figure, find the minimum angle of incidence (0;) that will result…

A: refractive index of cladding (n2) = 1.46

Q: )A person who is 30 m under water will experience O more pressure than a person 40 m underwater more…

A: A person is 30 m under water Let the atmospheric pressure = PoLet the density of water (ρ) = 1000…

Q: A moving object accelerates uniformly from 75 m/s at time t=0 to 135 m/s at t=10s. How far did it…

A:

Q: The vibration amplitude of a one degree-of-freedom harmonically forced undamped oscillator is in…

A: In the case of resonance, when excitation frequency is equal to the natural frequency then resonance…

Q: The acceleration, a, of a particle, at time t seconds is given by: a = 4-t/20 m/s?. This model is…

A:

Q: A proton and an a-particle (with their masses in the ratio of 1:4 and charges in the ratio of 1:2)…

A:

Q: A bug is sitting on the rim of a garden hose reel at radius 0.33 m from the axis of rotation. A…

A:

Q: Why is the usage of Kirchhoff's Laws instrumental in the study of electricity? Isn't the knowledge…

A:

Q: How much heat transfer occurs from a system, if its internal energy decreased by 150 J while it was…

A: Given: Internal Energy (△U) = - 150 Joule Net work done ( W) = 30 Joule

Q: 2. A car with a mass of 2800 kg moves t 15 m/s west and collides with a 3600 kg ar travelling at 17…

A:

Q: An electron enters a uniform magnetic field B = 0.31 T at a 41° angle to B. (Eigure 1) Figure 1 of 1…

A:

Q: Perfectly Inelastic Collision BEFORE AFTER m1=1300 kg m2=1900 kg m1=1300 kg m2=1900 kg V1=24 m/s…

A: Given data:  The masses of the objects  m1 = 1300 kg and m2 = 1900 kg Initial velocities  V1 = 24…

Q: A car travels along an oval road for two rounds. The average speeds of the car during the first and…

A: Given value--- first speed = 22 m/s. second speed = 30 m/s. We have to find--- What is the cars…

Q: An refridgerator behaves as a resistance of 18.6 Q in series with an inductive reactance of 1.39 2.…

A:

Q: Consider a series RLC circuit where the resistance R = 957 2, the capacitance C = 2.25 µF, and the…

A: Given value--- R = 957 ohm. L = 35 mH. C = 2.25 micro F. V = 24 V. We have to find ---- resonance…

Q: A trough has an open top 0.30 m by 6 mand closed vertical ends which are equilateral triangles 30 cm…

A: The length of the trough is L=6 m The top width of the trough is B=0.30 m The sides of the trough is…

Q: The rocket starts from rest t 0 and travels straight up. its height above the ground can be…

A: Given data as per question v=229m/s a=28.2m/s2 t=10s

Q: SHOW COMPLETE SOLUTION AND ILLUSTRATION. FINAL ANSWER IN 3 DECIMAL PLACES   A ball is thrown…

A:

Q: A 5.95 mm high firefly sits on the axis of, and 11.7 cm in front of, the thin lens A, whose focal…

A: height of firefly = 5.95 mm object distance (d) from lens A = 11.7 cm focal length of lens A = 5.61…

Q: What type of intermolecular force of attraction is shown by the picture below? 8- 8+ 8- I-Cl I-Cl…

A: The electrons in the molecule will be shared unevenly because Chlorine has an electronegativity of…

Q: In the formula F=kq,q2/r², the value of the constant k Select one: O a. is the same under all…

A: Electric force between two charges is given by coulomb's law .

Q: The radius of a coil of wire with N turns is r. A clockwise current of Icoil flows in the coil, as…

A: Given : Radius of a coil of wire = r Number of turns = N Current flowing in the coil in clockwise…

Q: A motor boat moves at a steady speed of 4 m/s. Water - resistance acting on it is 2460 N. Calculate…

A:

Q: 5.7 A pipe with a 2 m diameter carries water having a velocity of 4 m/s. What is the discharge in…

A: The flow rate from a pipe is given by Q˙ = A×v, where Q˙ = flow rate or discharge per second A =…

Q: A sinusoidal transverse wave is traveling along a string in the negative direction of an x axis. The…

A: As per the bartleby guidelines we can answer only a maximum of 3 sub parts of a given question, so…

Q: 200 m/s 13.3 The rocket is in powered flight close to the surface of the earth. Deter- mine the…

A: To be in a circular motion, acceleration and velocity should be perpendicular

Q: 18. Short Answer: A 10 kilogram body initially moving with a velocity of 10 meters per second makes…

A:

Q: A proton and an a-particle (with their masses in the ratio of 1:4 and charges in the ratio of 1:2)…

A:

Q: Two point charges q, = +26µC and q2 = -17.5µC are 64 cm apart. a. What is the potential energy of…

A:

Q: Qo Vo = 120 V C = 8.0 µF C2 = 4.0 µF We connect a capacitor C1 = 8.0 µF to a power supply, charge it…

A: Given data- Capacitor C1=8.0 μF,  C2=4.0 μF Potential difference V∘=120 V

Q: 1. A 200-N slides down a frictionless inclined plane that makes an angle of 37° with the horizontal.…

A: As per answering guidelines we will solve only the first one. Please upload rest of the questions…

Q: A 2.5 kg ball is dropped from the top of the building. Drag on the ball is negligible, and it landed…

A:

Q: A person who is 30 m under water will experience more pressure than a person 40 m underwater more…

A: In fluids pressure increases with depth. If depth increases pressure also increases

Q: A 50-g ball traveling at 30.0 m/s is bounced off a brick wall and rebounds at 20.0 m/s. A high-speed…

A:

Q: Household electricity in a particular country is supplied in the form of alternating current that…

A: E(t) = 200 Sin(80 πt) volts

Q: A 2400-kg pile driver is used to drive a steel beam into the ground. The pile driver falls 3.00 m…

A:

Q: 122 ww d 152 a ww 10 Ω I 50 V

A:

Q: A 45.0 kg girl is standing on a 153 kg plank. The plank, originally at rest, is free to slide on a…

A:

The Bohr model

Students often get confused between Rutherford’s model and Bohr model of an atom. They interpret the postulates of both these models to be the same, which is incorrect. Rutherford’s model differs from Bohr’s model in the following ways: