15. A 12 kg crate is pushed up an incline from point A to point B as shown in the figure: B 7.5 m 2.5 m The height of the points A and B from the ground are given in the figure. What is the change in the gravitational potential energy of the crate? A. 590J B. -590] C. 950] D. -950 J

Q: An optical fibre core and cladding refractive indices are 1.45 and 1.44 respectively. Compute its nu...

A: Given that,Refractive index of core, nCore=1.45Refractive index of cladding, nclad=1.44We know that,...

Q: Two very large charged parallel metal plates are 15.0 cm apart and produce a uniform electric fiold ...

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Q: The speed of sound in a solid medium is 15 times greater than that in air. If the frequency of a wav...

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Q: A generator delivers an AC voltage of the form &v-(86.0 V)sin(Sr) to a capacitor. The maximum curren...

A: Given that,AC voltage : ∆v = 86V sin85πtThe maximum current : I = 0.850 (A)As we know that,The genra...

Q: A jet plane is travelling towards west at a speed of 1800 km/h. What is the voltage difference devel...

A: Given-Speed of the jet plane, v=1800 km/h=500 m/sWing span of jet plane, l=25 mEarth's magnetic fiel...

Q: 1- Unidirectional flow of a unif orm, viscous incompressible fluid, Find equation of motion?

A: We have to find the equation of motion of incompressible viscous liquid We will use the navier Stoke...

Q: The core temperature of an athlete is 37 °C and his surface area is 1.8 m2. The thermal conductivity...

A: Concept: The Formula to determine the rate of Heat Flow is, Qt=kA∆Txwhere,k=Coefficient of Thermal c...

Q: A 1.05-m-long rod of negligible weight is supported at its ends by wires A and B of equal length (th...

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Q: Figure 1 shows the crystal structure of sodium chloride salt (Naci). Letthe effective radius of Na b...

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Q: A steam turbine receives a steam flow rate of 2kg/s and the power output is ... 700 kW. The heat los...

A: Given, flow rate =2 kg/s power =700 kw The velocities at entrance and exit and the difference in ele...

Q: A uniform magnetic field of 1.5 T exists in a cylindrical region of radius10.0 cm, its direction par...

A: Given-Magnetic field strength, B=1.5 TRadius of the cylindrical region, r=10 cm=0.1 mCurrent in the ...

Q: b) Calculate the hole and electron densities in a N-type germanium semiconductor at room temperature...

A: Given in the problem conductivity σ =500Scmμn =3800 cm2Vsμp = 1800 cm2Vsni = 2.5 x 1013 /cm3

Q: A 44 mH inductor is connected to 220 V, 50 Hz ac supply. Determine the rms value of he current in th...

A: Given-Inductance of inductor, L=44 mHL=44×10-3 HSupply voltage, V=220 VFrequency, n=50 Hz  

Q: Two long and parallel straight wires A and B carrying currents of 8.0 A and 5.0 A in the same direct...

A: Given-Current flowing in wire A, IA=8.0 ACurrent flowing in wire B, IB=5.0 ADistance between the two...

Q: An 8.00-cm-diameter, 370 g solid sphere is released from rest at the top of a 1.50-m-long, 20.0° inc...

A: Given that,The diameter : d = 8 (cm) = 0.08 (cm)The mass : m = 0.370 (kg)The length : l = 1.50 (m)Th...

Q: Find the transmission and reflection co-efficient for the following: Given E > U(0) Psi(x) = (e^ik...

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Q: 3. Three tugboats are used to bring a large ship to a pier as shown. Each tugboat exerts a 4000 Ib f...

A: Given: Force exert by tughboat on the ship, 4000 lb To find: Equivalent force and couple system at p...

Q: 5.4 In a negatively curved universe containing only matter (2, < 1, K = -1), show that the present a...

A: Given, the universe contains only matter and Ωo&lt;1 So scale factor will be a=12ΩoΩo-1coshθ-1 putti...

Q: In a zoo, a Metal-A cable with initial length of 4 meters and initial diameter 1 cm is needed to lif...

A: i) Elephant mass, M=1350 Kg initial Length of the rope, li=4 mInitial Diameter of the rope, di=1 cm=...

Q: Q1) Sketch ig and v, for the network of Fig.1 for the input shown. 10 k2 + 10 V Si Si + 5.3 V= 7.3 V...

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Q: For Ge semiconductor, assume the Fermi energy level is 0.1 ev below the conduction band energy Ec. L...

A: As per our policy, we will answer the first 3 subparts. Kindly resubmit the remaining parts as fresh...

Q: It takes you 1.5 s to push a 28 kg box by 4.4 m across a horizontal floor with a constant force of 4...

A: Given that,The time : t = 1.5 (sec)The mass of block : m = 28 (kg)The displacement of the block alon...

Q: Consider an electric field È given as Ē(2) = Eozk. with Eo having the appropriate unites. Find the f...

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Q: 3 ().The representation of wave function in spherical harmonic is : V87 Q1: Consider a system is in ...

A: Given: The wavefunction is given as

Q: A radio can tune in to any station in the 7.5 MHz to 12 MHz band. What is the corresponding waveleng...

A: Given- A radio can tune to minimum frequency, v1=7.5 MHz=7.5×106 Hz Maximum frequency, v2=12 MHz=12×...

Q: Use the following constants if necessary. Coulomb constant, k = 8.987 × 10º N · m² /C². Vacuum permi...

A: Concept: The Formula to determine the magnetic field due to current carrying wire at any Point at a ...

Q: Consider the spherical pendulum, which consists of a mass m suspended by a string from the ceiling. ...

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Q: A short bar magnet of magnetic moment m = 0.32 JT is placed in a uniform magnetic field of 0.15 T. I...

A: Moment of the bar magnet, M=0.32 J/TExternal magnetic field, B=0.15 T(a)The bar magnet is aligned al...

Q: In a GT car racing, a Porsche 919 (A) and an Audi R18 (B) reach the line C-C side by side at the sam...

A: Given, speed of  porsche 919 (A)= 100 km/h speed of Audi R18 (B)= 95 km/h car B increases the speed ...

Q: Consider the following mass distribution where the x- and y-coordinates are given in meters: 5.0 kg ...

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Q: A (50kg) person runs up a (10m) stairway in (15s).what is the horse- power rating of the person?

A: Given that,Mass : m = 50 (kg)Height of stairway : h = 10 (m)Time : t = 15 (sec)Gravitational acceler...

Q: We consider a particle of mass m that has a (dimensionless) position ¤(t) E R on a one-dimensional t...

A: Disclaimer: Above is an example of a multiple-part question. It is not indicated which part to be so...

Q: 1. For the following continuous time signals, determine the fundamental angular frequency w, and the...

A: 1. (a) x(t)=2 cos23t+sin14tx(t)=2ei2/3t+e-i2/3t2+sinei1/4t-e-i1/4t2ias we know T=2πωT1=2πω1=2π2/3T2=...

Q: A skier begins at the top of a 10.9-degree-inclined slope. The slope is 220 metres long, with a coef...

A: Given, θ= 10.9 ° The length of inclined slope, L= 220 m coefficient of friction of 0.0750

Q: A 100 2 resistor is connected to a 220 V, 50 Hz ac supply. (a) What is the rms value of current in t...

A: Given-Resistance of the resistor R=100 ohmSupply voltage V=220 VFrequency n=50 Hz  

Q: Why the temperature of melting ice does not change even though energy is being transferred as heat t...

A: Why the temperature of melting ice does not change even though energy is being transferred as heat t...

Q: A flat sheet is in the shape of a rectangle with sides of lengths 0.2 m and 1.7 m. The sheet is imme...

A: Given that:-Length of the sheet,L=1.7mWidth of the sheet,  b=0.2mUniform electric field, E=65 N/CThe...

Q: A long straight wire has fixed negative charge with a linear charge density of magnitude 3.6 nC/m. T...

A: Surface charge densityσ. given, Radius of cylinderR=1.7 cm=1.7×10-2 mLinear charge densityλ=3.6 nCm=...

Q: Sound travels at VELOCITY of 345 m/s in air. A violin plays a note at FREQUENCY 412 (1/s). What is t...

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Q: 5.10 In the Benchmark Model, what is the total mass of all the matter within our horizon? What is th...

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Q: The number density of free electrons in a copper conductor estimated in Example 3.1 is 8.5 x 1028 m-...

A: Number density of free electrons in a copper conductor, n=8.5×1028 m-3Length of coppper wire, l=3.0 ...

Q: A parallel plate capacitor of area 16.0 cm2 and separation 3.0 mm is connected across an 86.0 V batt...

A: parallel plate capacitor area, A=16 cm2=0.0016 m2initial separation of the parallel plates, d1=3.0 m...

Q: f an automobile revolves at the rate of 700 rpm. How fast does it  move in kilometre per h

A: As per rule, allowed to answer one question in a time and post the remaining in the next submission.

Q: The generator at a power plant produced AC at 25,000 V. A transformer steps this up to to 305,000 V ...

A: Given, The input voltage, V1=25,000V. The step up voltage, V2=305,000V Number of turns in input coil...

Q: A Moving to another question wil save thes re Question 2 A 15 kW, 400 V, 33 Hz reluctance motor is o...

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Q: Two identical uniform spheres A and B, with mass M = 1.00 [kg], are placed 0.500 [m] away from anoth...

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Q: 7) Use Mathematica to verify the parallelogram law in R3 for any pair of vectors u and i llũ + ||? +...

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Q: A resistance of R Q draws current from a potentiometer. The potentiometer has a total resistance R, ...

A: While the slide is in the middle of the potentiometer only half of its resistance (R0/2) will be bet...

Q: State two sources of random and systematic error in this experiment

A: The sources of random and systematic error in this experiment are described as, Random errors: Rando...