42.0° water unknown material 30.0°

Q: What causes eddy-current in a transformer?

A: According to Faraday's Law of Electromagnetic Induction, when an alternating magnetic field is…

Q: Four positive charges with magnitudes indicated below are placed at the corners of the rectangle as…

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Q: 5. An ideal simple pendulum with a 120 g mass that is 2.50 m long is pulled over 20° and then…

A: Time period of the simple pendulum T = 2πLgit is independent of the amplitude of the oscillation…

Q: Calculate the wavelength of light emitted from the lamp if the frequency is 6 x 1014 Hz. Express…

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Q: A fish in a flat-sided aquarium sees a container on the counter. To the fish’s eye, the container is…

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Q: A 1kg object is brought to planet mercury where the acceleration due to gravity  is 0.38 times its…

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Q: Select one: positive, negative negative, negative positive, positive negative, positive

A: As we can see from the diagram  The electric field lines coming towards charge A which means A is…

Q: he work done

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Q: A 0.25kg puck is initially stationary on an ice surface with negligible friction. At time t=0s a…

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Q: In which of the following systems entropy is increasing? O food steamer

A: entropy : the measure of disorder or random nessof a body is called entropy if disorder increases…

Q: 1. The total charge entering a terminal is given by q = 2e*cos (4t), in µC. Determine the current at…

A: We need to calculate the current at t = 0.35 s, given the value of q.

Q: The coefficient of static friction between a block of mass m and an incline is us = 0.3. If the…

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Q: A bus is traveling with a uniform velocity of 20 m/s. At the instant it passes a car at rest, the…

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Q: In an experiment, a shearwater (a seabird) was taken from its nest, flown 5150 km away, and…

A: distance flown = 5150 km time taken by the bird to reach back the nest = 13.5 days

Q: The wavelength of the yellow spectral emission line of sodium is 590 nm. At what kinetic energy…

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Q: -.what is hexa with example.

A: What is hexa with example

Q: A 120ft. cable weighing 6lb/ft supports a safe weighing 800lb. Find the work (in ft. – Ib) done in…

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Q: Part (c) Write an expression for FTy, the magnitude of the y-component of the tension in one chain,…

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Q: Objects A and B, which are initially neutral are rubbed against each other. As a result, A becomes…

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Q: List of Electrical Appliances, Power and Usage Inclusive Dates: April 7-14,2022 (1 Week). # of…

A: Power = energy/time. Energy = power × time

Q: Find the work done by F over the curve in the direction of increasing t.

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Q: A 7 -cm high object is placed 12 cm from a 20 -cm focal length diverging lens. Determine the image…

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Q: A 10 -cm high object is placed 11 cm from a 25 -cm focal length diverging lens. Determine theimage…

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Q: What is biosphere

A: Introdution: The biosphere, also known as the ecosphere, is the worldwide sum of all ecosystems. It…

Q: 3. Complete the table on the Summary of Images Formed by a Convex Mirror Image Distance Object…

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Q: Four masses are connected by 48.9cm long, massless, rigid rods. y B 1 A 1 If their masses are ma =…

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Q: What is the force between two point charges, each with 0.1 C of charge, that are 0.1 m apart?.  Show…

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Q: he object in the frictionless cone in the figure is making a uniform circular motion. Calculate, a)…

A: Given:-  Given:-  The object in the frictionless cone in the figure is making a uniform circular…

Q: Show solution and illustration At what angle should a ray of light be incident on the face of a…

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Q: 14.49 PQ1 An impulse turbine will produce no power if the velocity of the jet striking the bucket is…

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Q: Two resistors  R1 = 200 Ω and R = ?  are arranged in series. The equivalent resistance is 300 Ω.…

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Q: |22 A cable used to elevate heavy materials like steel beams must be tough enough to withstand…

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Q: Based on the arrangement of the electric field lines, what can you say about the charges?…

A: Given: Based on the arrangement of the electric field lines, what can you say about the charges?…

Q: A circuit has a resistance of 3.6 ohms and draws a current of 4.2 A what is the potential difference…

A: First Question: The potential difference (V) across a conductor equals the product of the current…

Q: Suppose that liquid mercury and glass both had the same coefficient of volume pansion. Would a…

A: Solution

Q: n electron with a mass of 9.11 x 10–31 kg is accelerated to 25% the speed of light (c = 3.00 x 108…

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Q: B) Yes, energy is being converted between potential and kinetic but the total momentum remains 7. Is…

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Q: A ball with a mass of 0.6 kg hits a wall with a velocity of 10 m/s. Wall applies 4000 N force to the…

A: Please note : As per answering guidelines I can answer the first question only. Since, this is not a…

Q: A bus initially with a speed of 25m/s slows down with an acceleration of -3m/s2.How far does it…

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Q: Using Kirchhoff's voltage law find the value of voltage€ in the circuit given below 102 20 2 152 25…

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Q: Early in the 20th century, a leading model of the structure of the atom was that of English…

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Q: 10 A bullet with mass 5.00-g is fired horizontally into a 2.00-kg block attached to a horizontal…

A: Given data as per question M  =  5G m  =  2kg

Q: Two waves traveling in opposite directions result in a standing wave. If the function of each wave…

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Q: A 1.38 kg piece of cheese is placed on a vertical spring of negligible mass and force constant k =…

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Q: Problem 6: A crate of mass m = 0.84 kg is on a frictionless incline that makes an angle of 0 P =…

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Q: Find the acceleration of m2

A: Given; Find acceleration of m2 ? If m1=300 g  m2=500g  F=3.4 NWhere, Friction and mass of the pulley…

Q: TRUE OR FALSE 5. If a car slows down, its acceleration (scalar) is positive.

A: If a car slows down, its acceleration (scalar) is positive.

Q: Two point charges +8q and -2g are located at x = 0 andx =L respectively. The location of a point on…

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Q: Find the potential at the center of curvature of the (thin) wire shown in the figure below. It has a…

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Q: , A charged particle will move aiong a straight line if the magnetic force and electric force acting…

A: 1. FALSE A charged particle will NOT move along a straight line if the magnetic force and electric…