A metallic plate, 15 cm by 50 cm in size, is heated from 20°C to 220°C. If the plate is made of steel (? = 11 x 10-6/°C), what is its change in area?

Q: In the figure below, the switches S, and S, are closed simultaneously at t = 0 and a current starts…

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Q: B A coin sits on a rotating turntable as shown in the figure. At the time shown in the figure, which…

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Q: A string on the violin has a length of 19.80 cm and a mass of 0.0752 g. The fundamental frequency of…

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Q: An airplane has a mass of 3.97 x 104 kg and takes off under the influence of a constant net force of…

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Q: a) By using the relation of work done in the form of volume charge density, calculate the energy…

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Q: The figure shows a cube with a -9.08-nC point charge at each corner. If the cube has sides of length…

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Q: If you double the speed of a particle, how does it deBroglie wavelength change? OPTIONS A(2) = 2…

A: According to De Broglie wavelength,λ=hmv.......(1)where,λ is the wavelength of particle m is the…

Q: 13. A very big truck collides with a small sports car. which experiences the greater acceleration?…

A: given:- a very big truck collides with a small sports car .

Q: For numbers 1 to 4, use Fig. 1. three point charges, with le] = 1.6 x 10-19 C, are simultaneously…

A: Concept Magnetic field due to a straight conductor at any point on its axis will always be zero.This…

Q: Mickey, a daredevil mouse of mass 0.0189 kg, is attempting to become the world's first "mouse…

A: Given: In this question, the given details are, Mickey, a daredevil mouse of mass 0.0189 kg, is…

Q: . Two marbles with masses, MA = 50g and MB = 20 g, collide on a frictionless surface. Marble A is…

A: Given, Masses of two marbles, MA=50gMB=20g The velocity of marble A is, vA=0.35m/s The velocity of…

Q: 1. A spring mass system is placed on smooth horizontal table. From equilibrium position the mass is…

A: Given tAB=2secM=200g=0.2 KgU=total energy=0.9 J

Q: A 9.00 pF capacitor is connected in series with a 6.00 pF capacitor and a 850 V potential difference…

A: Given:-  The two capacitance are as  C1= 9 pF C2= 6 pF   The capacitance is in the series and the…

Q: 18. The necessary conditions for the equilibrium of an object is a) ΣF=0 and Στ0 b) ΣΤ= 0 and Σ Ιω-0…

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Q: 3. Look at the image below. What you see is bullet of mass 0.030 kg moving horizontally straight…

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Q: The compressions and rarefraction that make up a sound wave traveling through the air are…

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Q: What is the focal length (in cm) of a magnifying glass that produces a magnification of 3.85 when…

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Q: 3. The drawing in Fig. 3 shows a 25.0 kg crate that is initially at rest. Note that the view is one…

A: Friction.

Q: P-400 20018 30

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Q: Due Date: June 29, 2020 1. A web page designer creates an animation in which a dot on a computer…

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Q: Find the total capacitance (in µF) of this combination of series and parallel capacitors shown…

A: Given Here capacitance of the three capacitors are given as C1=15 μF, C2=8.5 μF and C3=0.80 μF   We…

Q: A 50 eV electron is. trapped between electrostatic walls 200 eV high. How far does its wave function…

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Q: Consider a sound wave moving through the air modeled with the equation s(x, t) = 3.00 nm cos(55.00…

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Q: The magnitude of the magnetic field 47 cm from a long, thin, straight wire is 6.8 µT. What is the…

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Q: An electric ceiling fan with blades 0.500 m in diameter is rotating about a fixed axis with an…

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Q: 1. Point charges of 5.00 µC (micro coulombs) and -3.00 µC are placed 0.250 m apart. Where can a…

A: Q1 = 5 × 10-⁶ C Q2 = - 3×10-⁶ C  d = 0.250 m

Q: In the figure, two long straight wires at separation d = 16.5 cm carry currents of iz = 2.79 mA and…

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Q: 17. An FM radio station broadcasts at 96.7 x 10° Hz. What is the wavelength of the radio wave used…

A: Given data : Frequency, f=96.7×106 Hz Standard data: c=3×108 ms-1