A) Which sections represent zero net force? B) Which sections represent largest constant net force? Provide brief explanations.

Q: The drift speed in a copper wire is 7.15 x 105 m/s for a typical electron current. Calculate the mag...

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Q: A 30.0-kg object experiences a drag force due to air resistance with a magnitude proportional to the...

A: Given: Mass of object = 30 kg v =70 m/s a =4 m/s2    

Q: This refers to the richness of sound of a string composed of sound waves having the fundamental freq...

A: Answer:- (c) wave interaction    The richness of sound of a string composed of sound waves having th...

Q: If 10 lbs of water evaporated at atmospheric pressure until a volume of 188.5 ft3 is occupied, how m...

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Q: An Alaskan dog sled racer pulls his 75.0 kg sled at an angle of 40.0 degrees to the ground. He manag...

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Q: A bullet which has velocity 150 m/s and mass 4 kg sticks to the stationary block. They move together...

A: Problem-2 Given:The mass of the bullet is 200 g. The initial speed of the bullet is 150 m/s. The mas...

Q: Two particles, one at the origin and the other at x=1.6m produce an electric field of 875N/C at poin...

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Q: If a scaled drawing represents objects as 1/16 of their actual size, then an object that is 75.2 met...

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Q: A baseball is thrown at an angle of 40.0° above the horizontal. The horizontal component of the base...

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Q: A golf ball is driven horizontally from an elevated tee with a speed of 25 m/s. It strikes the fairw...

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Q: 2. In the figure shown, the magnitude of the uniform electric field is E = 70 kN/C . Calculate the e...

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Q: 722 302 5A

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Q: A force of 50 N stretches a spring in the figure by 200 mm. (a) What is the spring constant k? (b) W...

A: We use the relations F=kxE=12kx2

Q: A 12-volt battery has an internal resistance of 0.001Ω, The starter motor of the car draws a current...

A: Given: V=12 V Ri=0.001ΩI=230 A

Q: A whistling train travels past a person standing still. The height of the tone of the whistle sharpl...

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Q: A lab assistant has suspended a spring from a door frame. When an object is attached to the spring's...

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Q: The motion of a particle is given by a = 6v1/3, where a is in feet per sec² and v in feet per sec. W...

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Q: If the catapult's projection angle was changed to 45° at the m how long is the stone in the S same i...

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Q: 35 The bottom of a heavy block is covered with sandpaper. The block is repeatedly slid 1.0 meter at ...

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Q: Find the directiom. the ginen vector. (Q. 45) Î t -(.78)î %3D Meaure the angle W/ recpect to the tx-...

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Q: : 3 2.00j, (a) find the magnitude of each vector; (b) use unit vectors to write an expression for th...

A: magnitude of a vector is the square root of the some of the squares of components.

Q: Show your solutions 1. A hair dryer pulls a current of 8000 mA from a 120 V power source. What is th...

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Q: Lightning is a bright flash of electricity produced by a thunderstorm. All thunderstorms produce lig...

A: Write the expression for the work. Here, q represents the charge and ΔV represents the potential di...

Q: Part A An electric dipole is formed from two charges, ±q, spaced 0.600 cm apart. The dipole is at th...

A: Electric dipole moment p = q×a

Q: Two spheres are made of the same metal and have the same radius, but one is hollow and the other is ...

A: (C)they expanded by the same amount.

Q: A doctor leaves her house and walks along the sidewalk towards the hospital. After 3mins, it starts ...

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Q: Three forces act on the ring. If the resultant force FR has a magnitude and direction as shown, dete...

A: We have F1→+F2→+F3→=FR→ and given F1→=80cosθi→+sinθk→=8045i→+35k→F2→=-110k→FR→=120cos45osin(300)i→+c...

Q: A runaway dog walks 0.64 km due north. He then runs due west to a hot dog stand. If the magnitude of...

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Q: A rock is thrown at a window that is located 18.0 m above the ground. The rock is thrown at an angle...

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Q: A car travels 20. meters east in 1.0 second. The displacement of the car at the end of this 1.0-seco...

A: The displacement is a vector quantity. It is always associated with direction.

Q: Two horizontal forces F, and F, are acting on a box, but only F, points to the right, F, can point e...

A: Let F2→=fi→ also given F1→=9i→ Now resultant force on the object, F→=F1→+F2→=9i→+fi→=9+fi→

Q: An object, whose mass is 0.640 kg, is attached to a spring with a force constant of 148 N/m. The obj...

A: Given data: Mass m = 0.640 kg Force constant k = 148 N/m Distance A = 0.150 m  

Q: A volleyball is thrown with an initial velocity of 30 m/s at an angle of 40 degrees above the horizo...

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Q: A concert loudspeaker suspended high off the ground emits 45 W of sound power. What is the sound int...

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Q: A whistling train travels past a person standing still. The height of the tone of the whistle sharpl...

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Q: A whistling train travels past a person standing still. The height of the tone of the whistle sharpl...

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Q: Prof. P. built a wooden pendulum clock over the break between Winter and Spring quarters during the ...

A: Draw the schematic diagram of the pendulum.

Q: A 0.015 kg bullet is fired at a 1.5 kg block initially at rest. The bullet, moving with an initial s...

A: GivenMass of bullet, m1=0.015 kgMass of block, m2=1.5 kgInitial speed of bullet, u1=500 m/sVelocity ...

Q: A mass of 1.25 kg is attached to the end of a spring whose restoring force is 160 N The mass is in a...

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Q: The distance between an object and a divergent lens is m times the focal length of the lens. The lin...

A: Given: The lens is a diverging lens. The distance between object and lens is m times the focal lengt...

Q: 22.A. The law that states the relationship between the incident and refracted rays is called A. Snel...

A: Snells law

Q: Suppose that a wire leads into another, thinner wire of the same material that has only half the cro...

A: GivenArea of Thin wire is half to the area of thick wireAthin=12AthickElectric field in thick wire, ...

Q: 3. Four wooden members are joined with metal plate connectors and are in static equilibrium (not mov...

A: Given: FA=2.5KNFB=2.1KN

Q: When moving from infinity to towards a negative point charge, the electric potential. select the let...

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Q: An air-core solenoid having 4000 loops is 120 cm long and has a diameter of 4 cm. If a current of 10...

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Q: A piece of wood floats in glycerin (D = 1.26 g/cm3). Calculate the density of the wood if 66% of its...

A: Given value--- density of glycerin = 1.26 g/cm3.  66% of its volume is submerged. We have to find ...

Q: What will be your charge if you scrape electrons from your feet while scuffing across the rug?

A: Any surface has positive negative charges present in it and negative charger can be considered in th...

Q: Five 3.25-µF capacitors are connected as shown on the right. What is the capacitance of the circuit?

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Q: A stationary ball of mass 0.4 kg is kicked so that the kicker's foot departs at 5 m/s in a direction...

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Q: 72>)If a solid conducting sphere of radius 0.5 m carries a total charge of 225 nC uniformly distribu...

A: Last option is correct.

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”