'Which choice in the list below corresponds to a correct unit of Planck's constant? O a. J/s O b. J.s² O c. ev.s O d. eV/s

Q: A room has dimensions of 9.8 meters by 8.3 meters by 3.5 meters. Air has a mass density of 1.3…

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Q: COMBINED SERIES AND PARALLEL CIRCUIT The diagram below shows a circuit with one battery and 10…

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Q: 3. An AC circuit draw /= 50 mA (rms) current from fixed voltage source, V=20 Vrms. Calculate the…

A: Given: Current (I) = 50 mA = 50 × 10-3 A              Voltage (V) = 20 Volts…

Q: A boll rounds a 18 m radius curve at 4 m/s. The magnitude of it's acceleration in m/s²

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Q: When water at 10 C is heated to 20 C, what happens to its kinetic energy? Describe the heat…

A: Heat, temperature and kinetic energy are linked to each other. In simplest terms, when we heat a…

Q: Using the same emission spectrum at the example. Solve for the frequency of the emitted photon when,…

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Q: A transverse wave on a string is described by the equation: y(x, t) = 0.12 sin(2x + 10nt + p) where…

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Q: d+y 8. A wire of 2 mm² cross-sectional area and 1.3 cm long contains 2 x100 electrons. It has a 102…

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Q: Find the displacement value Work done=120 J Force=23 N

A: Given,      Work done (W) = 120 J             Force (F) = 23 N      displacement (d) =?

Q: Q7. An ideal gas is kept inside a closed container at a temperature of 40 K and a pressure of…

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Q: A 3.0-kg object is initially at rest. It then receives an impulsive of magnitude 15 N-s. After the…

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Q: Make a VIRP table and complete it by measuring the voltage across each resistor and the power supply…

A: The resistors R2 and R3 are in parallel. The resistance Rp and R1 are in series. Determine the…

Q: A sine wave traveling in the positive x-direction has an amplitude of 15 cm, a wavelength of 40 cm,…

A: Wave number of the wave, K=2π/λ Where, λ= wavelength

Q: If a child were born with natural musical ability because the child's mother had taken piano…

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Q: A rotating body has kinetic energy. This statement is ; a.)Always false b.)Sometimes false c.)Always…

A: Answer:-  Answer (1) :- (c) Always true      A rotating body has kinetic energy. Because    The…

Q: The face of a vertical dam has the shape of an isosceles triangle of altitude 4 m with an upper base…

A: The hydrostatic force exerted by a fluid on a submerged horizontal body is given by the equation:…

Q: Use graphical method. Two vectors of 8.0 units and 5.0 units make an angle of 600 with each other.…

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Q: particular type of wave hasa wavelength of 5m that pass by an observer once every 4 seconds. A.…

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Q: Q2) A (20kg) child sitting in a cart to which a (2m) rope is attached. The rope is tied to a motor…

A: Write the given values with the suitable variables. m=20 kgr=2 mF=100 N Here, m is the mass, r is…

Q: A nuclear power plant operates at 66 % of its maximum theoretical (Carnot) efficiency between…

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Q: 6. What could be the reason a car moving on a horizontal road gets thrown out of the road while…

A: 6.    A centripetal force is required for circular motion. Whenever a car makes a turn it needs…

Q: 3. A piece of metal with a mass of 15.3 grams has a temperature of 50.0 °C. When the metal is placed…

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Q: displacement. Two forces, one of 12 N and another of 24 N, act on a body in such a way that they…

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Q: Find work done F=2.1 N Displacement=0.23 m

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Q: Your job is to lift 30-kg crates a vertical distance of 0.90 m from the ground onto the bed of a…

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Q: Find the displacement Work done=0.8 J Force=0.4 N

A: Given data : Work done=W Force=F   To find: Displacement

Q: Determine force Work done=500 J Displacement=10 m

A: Given data : Work done=W Displacement=d   Required : Force

Q: Find distance covered Speed=20 km/hr Time=1 hr

A: Write the given values with the suitable variables. v=20 km/hrt=1 hr Here, v is the speed and t is…

Q: All materials change in; length when placed under tension or compression. When a sample of fresh…

A: Effects of compression or tension on materials.

Q: What is the electric potential 2 points from a source charge of 5.2 x 10^3 C charge, if the test…

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Q: The gravitational force of the earth on an object varies of the _____ the distance of the object…

A: From the Newton's universal law of gravitation The gravitational force between two particles is…

Q: A boxed 10.0-kg computer monitor is dragged by friction 5.50 m up along the moving surface of a…

A: Given: The mass of the computer monitor is 10 kg. The displacement of the object along the plane is…

Q: A 2.0- resistor, 1.9-uF capacitor and 0.12-H inductor are connected in series. Calculate the…

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Q: here are eight identical charges with magnitude Q Coulombs located at the corners of a cube. Four of…

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Q: A body of mass 3.56 kg is moving toward x direction with the velocity V = (a-bt)(c-dt), where t is…

A: V= (a-bt)(c-dt)  a= dV/dt = (c-dt)×d(a-bt)/dt + (a-bt)×d(c-dt)/dt => a= (c-dt)×(-b) + (a-bt)×(-d)…

Q: Radioactive 1¹25 is used to treat a certain cancer. Its half-life is 59 days, and the initial…

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Q: In a science fiction story about space exploration an expedition to Mars was described. The space…

A: Astronomy nowadays is fulfilled with every details needed to explore universe. The things of…

Q: Q9. The temperature of a 1 km long copper wire has been increased by 50° C, then its length will be…

A: Given Data:- Length of the copper wire is l=1km=1 km×103 m1 km=103 m Temperature increased ∆t=50° C…

Q: A rectangular plate is submerged in water as shown below. The top of the blue region is the surface…

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Q: 1. An object in a horizontal surface was moved by applying a constant force (in Newtons), F=8i + 5j.…

A: Write the given values with the suitable variables. F→=8i^+5j^ Nd=9 m Here, F is the force and d is…

Q: The equation of a wave in the international system SI, which propagates by a string is given by the…

A: we have yx,t=0.08cos4πx-8πt

Q: A 60-Hz AC generator develops a peak voltage of 170- V. The generator is connected to a lightbulb…

A: we have for voltage V=170sin2π×60t=170sin120πt

Q: Water drips from a faucet at a uniform rate of 4 ?????/??????. Find the distance between two…

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Q: t is a typical 0 celsius winter day. A. state the speed of sound. B. state the frequency range…

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Q: Fuel oil in a day tank for use of an industrial boiler is tested with a hydrometer. The hydrometer…

A: Higher heating value of fuel is given by  QH=41130+139.6APIAPI=141.5SG15.60c-131.5

Q: world’s largest cut diamond id the First  Star of Africa. Its volume is 4.81 cubic inches. What is…

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Q: A Step-Down Transformer. A transformer connected to a 120-V (rms) ac line is to supply 12.0 V (rms)…

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Q: 3. A proton and an electron are 20 mm apart. What is the magnitude and direction of the electric…

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Q: A guitar string of mass 6.48 g and -1 length L= 90 cm is under a tension of 150 N. A standing wave…

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Q: A body is moving toward X direction with the velocity V= (a-bt)(c-dt), where t is the time,…

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Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.