A heart pacemaker fires exactly 71 times a minute. Each time it fires, a 19.0 nF capacitor is charged by a battery in series with a resistor to 0.582 of its full voltage. What is the value of the resistance R?

Q: A uniform narrow bar, resting on frictionless ice, is given a transverse horizontal impulse J at one…

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Q: While driving past a bank, you see that the Fahrenheit temperature reading is 96.5°. What is this…

A: Temperature is Find:Tempearture in Kelvin.

Q: A grocery cart with mass of 16 kg is being pushed at constant speed up a flat 12° ramp by a force Fp…

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Q: A rectangular aquarium having a length of 3 meters, a width of 1 meter, and a height of 2 meters is…

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Q: The dimensions of the thin film resistor are W = 2.80 mm, L = 8.03 mm and d = 575 um. the…

A: Width of resistor Length of resistor Height of resistor Resistivity

Q: A mine car (mass=380 kg) rolls at a speed of 0.50 m/s on a horizontal track, as the drawing shows. A…

A: Mass of vehicle is Initial velocity of vehicle is along +x-axis.Mass of object is Initial velocity…

Q: The figure shows a small sphere of mass 1.5x10-14 kg held in equilibrium between two parallel metal…

A: The electric force on charge q in electric field E is FE = qE

Q: A block with a mass m is initially compressing a spring by x1 on a horizontal floor with no…

A: Mass = mInitial compression = x1spring constant = kFriction force = fr = 0 NewtonTotal distance =…

Q: Free-body diagrams of forces acting on a mass m in two situations are shown below. y 3N 2N y 4N 4N…

A: Mass of object is Free-body diagram of forces acting on the object in two situations is…

Q: An object with a mass of m= 15 kg is at rest on a frictionless surface and is subject to 2 forces…

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Q: 4. A projectile has an initial velocity of 30.0 m/s at an angle of 75.0° with respect to the…

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Q: A 0.156 kg glider is moving to the right on a frictionless, horizontal air track with a speed of…

A: This problem can be solved using elastic collision concept

Q: While a roofer is working on a roof that slants at 38.0 ∘∘ above the horizontal, he accidentally…

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Q: 22.5 cm? 8. If the bowling ball in problem 7 is accelerated at a rate of 2.1 rad/ applied to produce…

A: Mass of the bowling ball,                     Diameter of the bowling ball,                     Then…

Q: an 8.0 kilogram block and a 2.0 kilogram block rests on a horizontal frictionless surface. when…

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Q: A dipole is held motionless in an electric field as shown in the figure. When the dipole is…

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Q: Three 20ohm resistors are connected in parallel across a 120V generator. Find the total resistance…

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Q: 4. Four waves are traveling along the same string in the same direction. The expressions of those…

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Q: 2. Consider two identical boxes. Box 1 contains two charges, each with value +q. Box 2 contains two…

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Q: 3. On a cloudless day, the sunlight that reaches the surface of the earth has an intensity of about…

A: The intensity of sunlight is I=1.50x103 W/m2.The volume of the space is V=5.10 m3.The expression for…

Q: A baseball pitcher throws a baseball horizontally at 25.2 m/s. It lands on home plate, 20.6 m away.…

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Q: The magnetic field perpendicular to a single 17.2- cm -diameter circular loop of copper wire…

A: The diameter of the copper loop , d= 17.2 cm = 0.172 m.…

Q: electric feld strength 30 cm from the center of a charge Q is 380 N/C. An electron is fired away…

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Q: 1. The position of a particle moving in an xy plane is given by r = (2.00t3 - 5.00t)i + (6.00…

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Q: Two small pith balls, each with a charge of + 4.89  µC and + 4.17  µC, repel each other with a force…

A: Charges q1 = 4.89 micro Cq2= 4.17 micro CForce = 3.12 N

Q: An open plastic soda bottle with an opening diameter of 2.0 cm is placed on a table. A uniform 2.25…

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Q: 6. Newton's Law of Gravitation says that the magnitude F of the force exerted by a body of mass m on…

A: Newton's Law of Gravitation states that the magnitude of the force exerted by a body of mass on a…

Q: 10. Three polarizing disks have planes that are parallel and centered on a common axis. The…

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Q: In the circuit, the capacitor is fully charged when switch S is closed. Calculate the time needed…

A: Capacitance C = 50 mFInductance L= 45 H

Q: A child, hunting for his favorite wooden horse, is running on the ground around the edge of a…

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Q: Copper wire has a resistivity g = 1.7 x 10-8 22-m when at 20°C and it has a temperature coefficient…

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Q: In the figure the ideal batteries have emfs 8₁=4.89 V and 8-10.2 V, the resistances are each 2.410,…

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Q: A shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25° downward…

A: Force applied to the cart,                       The angle between force and displacement,…

Q: A 65-kg stunt person jumps from a tower 65 m tall into a tank of water shaped like a cube 3.0 m on a…

A: The increase in temperature of the water and the thermal energy received by the water, are related…

Q: Problem #7: Chapter 20, Problem #59 59. W (a) A 3.00-μF capacitor is connected to a 12.0-V battery.…

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Q: force is necessary to do which of the following? select all that apply. travel in a straight line at…

A: applied force

Q: An object with mass m = 17.5 kg is hanging by two cables. The angles are a -17° and ß-25°. The…

A: M= 17.5kg and angles are 17° and 25°

Q: A positively charged particle is held at the center of a spherical shell. The figure gives the…

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Q: Two kids enter unpowered homemade carts in a soapbox derby race. The two carts have the same total…

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Q: T31. (A) Find the peak magnetic field in an electromagnetic wave whose peak electric field is Emax.…

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Q: Isabel walks 32 meters due south,then 48 meters due west and finally 52 meters due north. How far is…

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Q: S X 5. A high energy pulsed laser emits 3.00 nano second-long pulse of average power 1.60 x 10¹1 W.…

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Q: Two kittens are running toward each other, one is named Chloe and the other is named Luna. Luna runs…

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Q: Light shines through a single slit whose width is 5.8 × 104 m. A diffraction pattern is formed on a…

A: Width of slit is Distance between screen and slit is Distance between central fringe and the first…

Q: charge of 4.71 µC is discharged through a 1.45-kΩ resistor. (a) Calculate the current in the…

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Q: A neutral object is sketched below, in black and white. There are positive and negative electric…

A: Like charges repel each other while the unlike charges attract each other.A neutral object consists…

Q: 4) A loop carrying a current as shown rests in a uniform magnetic field directed to the right. If…

A: Magnetic field directed right

Q: radio with a resistance of 40 ohms and a clock with a resistance of 20 ohms are connected in series…

A: Resistance of radio and clock are 40 ohm and 20 ohm.

Q: A car is driving fast following a curve. If the car suddenly doubles its speed what would be the…

A: Centripetal force is a force that makes an object follow curved path.Where,Fc = centripetal forcem =…

Q: Problem 3: A 500-kg dragster accelerates from rest to a final speed of 110 m/sec in 400 m (about a…

A: