What happened when you put the charged material near the electroscope and why? What happened when you touched the electroscope? Why did we use aluminum foil or gold leaf inside the jar and not plastic?

Q: Three protons are each located at the corners of an equilateral triangle as shown in the figure belo...

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Q: A 5 kg object is to be given an upward acceleration of 0.5 m/s^2 by a rope pulling straight upward o...

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Q: Problem 1: Aloop of wire with radius r =0.035 m is placed in a region of uniform magnetic field with...

A: "Since you have posted a question with multiple sub-parts, we will solve first three subparts for y...

Q: An infinitely plate has a surface charge density of 23.34 pC/m2. What is the magnitude of the electr...

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Q: The only force acting on a 5-kg object has components Fx = 60 N and Fy = 80 N. Find the acceleration...

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Q: On average, an eye blink lasts about 100 ms. How far does a fighter jet travel during a pilot's blin...

A: Given data:  Time (t) = 100 ms = 0.100 s Average velocity (v) = 3300 km/h Required: Distance (d) 

Q: Consider the circuit shown. Let ε=16.0 and let R1=R2=R3=R4=6.00Ω. What is the voltage across R3? A. ...

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Q: Determine the force acting on the electric charges q1 = -1.25x10-9 C. and q2 = +2 x10-5 C. that are ...

A: Givenq1 = -1.25 ×10-9Cq2 = +2 ×10-5Cr = 10 cm =0.10 m

Q: A 5-kg mass falls 100 cm. How much work was done on it by the gravitational force? * O 78 J 71 J 50 ...

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Q: 3.50A 4. In the circuit shown on the right, the rate at which R1 dissipating electrical energy is 20...

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Q: 2. Resistance of an electric iron 50 Q.4.2A Current flows through the resistance. Find the voltage b...

A: Given data :                       Resistance   =  R                         Current   =   i        ...

Q: The energy associated with an object's temperature is called Internal Energy Weight

A: Energy is ability of doing work.  It's unit isJoules and it is a scalar quantity. 

Q: From a point on the ground at a distance 15 m from the foot of a vertical wall, a ball is thrown at ...

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Q: Suppose that a bar magnet is dropped through a horizontal loop of wire connected to a galvanometer. ...

A: since the loop/ coil is kept horizontal and the bar magnet is dropped through it , so there will man...

Q: A boy rides his bicycle 2.00 km. The wheels have radius 30.0 cm. What is the total angle the tires r...

A: Given data: The total distance moved by the cycle, D=2.0 km. The radius of the wheel, r=30.0 cm.  

Q: Leo is spinning a basketball with a radius of 12 cm on the tip of his finger. Determine the mass of ...

A: The moment of Inertia of about the axis of a hollow sphere is given by I = 23Mr2, where M = mass of ...

Q: 300 The mass of a pendulum bob is 0-2 kg, and it is suspended by a string 1 m long. It is pulled asi...

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Q: The magnitude of electric field at a point 1 cm above a large, flat, horizontal sheet of charge is t...

A: Given The magnitude of electric field at a point 1 cm above a large, flat, horizontal sheet of charg...

Q: 2. A cube of side 8.50 cm is placed in a uniform field E = 7.5 x 10' N/C with edges parallel to the ...

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Q: A positively charged particle of mass 6.72 × 10°8 kg is traveling due east with a speed of 51.4 m/s ...

A: Given Information:- Mass of the particle m=6.72×10-8 kg Initial speed of the particle v=51.4 m/s Mag...

Q: 0. You have two base bias circuits connected for testing. They are identical except that one is bias...

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Q: Consider an infinitely long conducting shell in the shape of a right circular cylinder with radius R...

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Q: How much would it cost to provide 175 MJ of heat with electricity if the cost of electricity is $0.1...

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Q: 4. A parallel-plate capacitor in air has a plate separation of 1.35 cm and a plate area of 35.0 cm2....

A: Separation of the plates d=1.35 cm, area of the plates A=35 cm2, potential difference of the plates ...

Q: There is a 22.2 pC point charge. What is the magnitude of the electric field (in N/C) 67.4 mm away f...

A: The magnitude of the electric field due to a point charge at distance is given by E = kQr2, where k ...

Q: A bowling ball, whose radius R is 11cm and whose mass is 7.2Kg, roll from rest down a plank whose le...

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Q: An object of mass (m = 5.4 kg) moves under the influence of one force. That force causes the object ...

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Q: A horizontal pipe of diameter d1 = 10 cm carrying water has a constriction of diameter d2 = 4 cm. I...

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Q: What is the instantaneous velocity of a freely falling object 5.0 s after it is release from a posit...

A: Given data:  Initial velocity (Vi) = 0 m/s Time (t) = 5.0 s

Q: 6. A crazy, young boy on a sled is able to get up to an incredible speed of 22.5 m/s (yes, he is wea...

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Q: Part A The work done by an external force to move a -7.50 µC charge from point A to point B is 1.40x...

A: Answer:-  Given  Charge(Q) = - 7.50 uc = - 7.50 × 10-6 c  Work done (W) = 1.40 × 10-5 J  Kinetic ene...

Q: If two balls are released simultaneously from the same height, which one will hit the floor first, t...

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Q: If a Saturn V rocket with an Apollo spacecraft attached had a combined mass of 2.9 × 105 kg and reac...

A: Given value---  mass m = 2.9 × 105 kg. speed = 12 km/s. We have to find --- kinetic energy?

Q: Calculate the force required to pull a stuffed toy duck (mass m = 1.75 kg) at a constant velocity of...

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Q: A rod of length L lies along the x axis with its left end at the origin. It has a non-uniform charge...

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Q: 21.17 • Two point charges are located on the y-axis as follows: charge q = -1.80 nC at y = -0.575 m,...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: Calculate the rotational inertia of a meter stick, with mass 0.523 kg, about an axis perpendicular t...

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Q: 21-30. Analyze the diagram below and complete the table with correct data. Express the final answers...

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Q: .Express (a) the energy required to break one bond in DNA (10-20 J) in eV. (b) the kinetic energy of...

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Q: A 7-kg object is to be given an upward acceleration of 0.4 m/s2 by a rope pulling straight upward on...

A: The net force acting on the object = T-mg     -------(1) where T = tension on the rope mg=weight of ...

Q: How could you determine whether the charge on a particular rod is positive or negative? Explain brie...

A: We know,Same charges repel each other whereas opposite charges attract each other 

Q: a man of mass 50 kg jumps to height of 1m. his potential energy at the highest points is (g=10m/s2) ...

A: We know that the potential energy of an object is  given as  P.E = mgh  where m is the mass of an ob...

Q: What is the magnitude of energy (in MJ) that must be removed to freeze 439 L of water with a density...

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Q: A battery with an EMF of 12 V and an internal resistance of 1 Q is used to charge a battery with an ...

A: Given: The emf of the first battery is 12 V and internal resistance 1 Ohm. The emf of the second bat...

Q: Part A Two stationary positive point charges, charge 1 of magnitude 3.85 nC and charge 2 of magnitud...

A: Given Data, Magnitude of charge '1"=3.85 nC Magnitude of charge "2"=1.70 nC Separation distance betw...

Q: Problem 7: A coil of area A = 0.45 m2 is rotating with angular speed w = 360 rad's with the axis of ...

A: Area of coil, A = 0.45 m² Angular speed, ω = 360 rad/s Magnetic field, B = 0.15 T Number of turns, N...

Q: The armature of a generator consists of 5 circular coils with radius 1.5 cm. The coils rotate in a c...

A: GivenNumber of turns (N) = 5Radius (r) = 1.5 cm = 1.5 × 10-2 mB = 1.25 TMaximum voltage (V0) = 2.5 V

Q: A coil of Nichrome wire is 26.0 m long. The wire has a diameter of 0.450 mm and is at 20.0°C. (a) If...

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Q: A Carnot device operates between a cold reservoir of temperature -100°C and a hot reservoir of tempe...

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Q: At a certain time a particle had a speed of 12 m/s in the positive x direction, and 1.2 s later its ...

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