A child is playing with a ball on a level surface. She gives the ball a push to get it rolling, then the ball rolls a short distance before coming to a stop. Which of the following explains why the ball slows to a stop? a. the child stopped pushing it b. the speed is proportional to the force c. there must have been some force on the ball opposing the direction of motion d. the net force on the ball was zero, so it wanted to remain stationary

Q: A 2200-kg auto moving northward at 12.0 m/s runs into a 3800-kg truck which is also moving northward...

A: mass of auto (m) = 2200 kg initial velocity of auto (u) = 12 ms , due north mass of truck (M) = 3800...

Q: PHYSICS LECTURE QUIZ NO.3 SOLVE FOR THE TENSIONS ON ROPES A,B,C AND D AS SHOWN IN THE FIGURE. DRAW T...

A: Given that:- Two loads of 500N and 400N are connected with rope.

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A: Given:  r(t)→ = 15ti^ +20t-5t2j^ g = 10 m/s2Inital speed= V m/sAngle of initial velocity with horizo...

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Q: Determine the dot product of the following vectors A * B  A=45 i + 65 j + 27 k B=46 i + 10 j + 43 ...

A: Given data:  A = 45 i + 65 j + 27 k B = 46 i + 10 j + 43 k Required: The dot product of vector A and...

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A: we know heat flowing through a material Q = Cm∆T where C = specific heat  m = mass of substance  ∆T=...

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Q: In the figure below, determine the point (other than infinity) at which the electric field is zero. ...

A: q1 = -2.30 μC q2 = 6.20 μC   

Q: A diverging lens has a focal length of magnitude 20.8 cm. (a) Locate the images for each of the foll...

A: Given , Diverging lens has a focal length of 20.8 cm

Q: A man strikes one end of a thin rod with a hammer. The speed of sound in the rod is 15 times the spe...

A: Let L be the length of the rod. 

Q: The following are statements that describe Electric Potential EXCEPT: potential energy per unit char...

A: Correct option is (b) energy needed to move a charge against an electric field.

Q: A 31.5 g silver spoon at 26.4°C is placed in a cup of coffee at 85.8°C. How much heat does the absor...

A: GivenMass of silver spoon (m) = 31.5 gInitial temperature of spoon (ti) = 26.4°CFinal temperature of...

Q: A 526 Hz tone is sounded at the same time as a 503 Hz tone. What is the beat frequency? Hz

A: Frequency of first wave ν1 = 526  Hz  Frequency of second wave ν2 = 503 Hz

Q: 3) Determine i, si la Fuente es de 15v. R=60 R = 40 R= 100 AOW R = 82 R=60 REQ R2 80 Rig 20 Re = 60 ...

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Q: if two coils placed next to one I know there have a mutual inductance of 3.00 MH, what voltage (in V...

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Q: long, straight wire with linear mass density of 45 g/mg/m is suspended by threads, as shown in the f...

A: Force on current carrying conductor in magnetic field F = I L B Sinθ 

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Q: 75.0 N, %3D %3D 6.33 In Figure P.6.4, VB = 12.0 V, R1 = 100.0 N, R2 = 55.0 N, R3 .. R: Figure P.6.4....

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Q: . If the weight of an object of mass m is mg, the the weight of an object of mass 3m is

A: Given   Mass of object 1 (m1 ) = m Weight of object 1 (w1) = m × g                                  ...

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Q: The 3.0 kg, uniform, horizontal rod in (Figure 1) is seen from the side. What is the gravitational t...

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Q: A -6 nC particle is moving at 4.0 x 10⁴ m/s along the positive z-axis. It passes a region undeflecte...

A: Given: q=-6nC = -6*10-9 Cv=4.0 *104 m/s (along +Z)E=5.75*105 N/C (along -ve X)

Q: 7. A0.20 kg bouncy ball is thrown horizontally at a wall at +8.0 m/s in the positive x direction. It...

A: Option -e

Q: a grindstone of radius 4.0 m is initially spinning with an angular speed of 8.0 rad/s. The angular s...

A: The equations of angular motion we use to solve this are ωf = ωi+αt ωf2-ωi2 = 2αθ, where ωf = the fi...

Q: Jack and Jill are moving furniture. They stand at opposite ends of the sofa and pick it up. The sofa...

A: Given that:- Length of sofa=2.2m

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Q: The electric field of the material between two coaxial cables of radius .25 m and .51 m is given as ...

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Q: Spent steam from an electric generating plant leaves the turbines at 126.6°C and is cooled to 88.7°C...

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Q: A 2500 kg van accelerates down an icy driveway, going from rest to 30.0 m/s in 6.00 s. During its mo...

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Q: A tuning fork vibrates 543.0 times a second, producing sound waves with a wavelength 63.0 cm. What i...

A: The wavelength of a wave is given by λ = vf, where v = the velocity of the wave f = frequecny of the...

Q: 4. A ball is thrown horizontally from the top of a building 55m high and strikes the ground at a poi...

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Q: . The maximum power consumption of an air fryer is 1500 W. If it is connected to a 220-V line, (a) h...

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Q: For two like charges, as distance between them approaches zero, potential energy also approaches zer...

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Q: izontally at 25 m/s, strikes a wall and rebounds at 19 m/s. What is the magnitude of the change in t...

A: Given Initial velocity u = 25 m/s Final velocity v = 19 m/s Mass m = 0.1 kg 

Q: Problem 4: A skateboarder is attempting to make a circular arc of radius r= 11 m in a parking lot. T...

A: Given: Mass of skateboarder = m = 89 kg Radius = 11 m Coefficient of  Kinetic friction = 0.12

Q: To compress a spring 5.0 cm from its unstretched length, 18.0 J of work must be done. (a) What is th...

A: Given 18 joule of work is to be done to compress a spring by 5cm from natural length. Work done on t...

Q: What is true about impulse and momentum Impulse deals with velocity while momentum deals with change...

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Q: Part A A resistor with resistance R and a capacitor with capacitance C are connected in series to an...

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Q: The work done on a stretching a spring it to 3.50 cm from its equilibrium length is 14.0 J. (a) How ...

A: Stretching in spring = 3.50 cm Work done = 14 J   

Q: Consider a cosmic ray colliding with a nucleus in the Earth's upper atmosphere that produces a muon ...

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Q: What is the color code of the resistor in a resistor with a resistance of 34 M Ohms +_ 10%?

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Q: A Tesla Model S electric car accelerates from zero to 30 m/s in 4.4 seconds. If the mass of the car ...

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Q: In a physics lab experiment, a 6.00kg box is pushed across a flat table by a horizontal force. a) If...

A: F is the external force  fk is the kinetic frictional force  μk is the coefficient of kinetic fricti...

Q: In the pair production process, photon energy gets converted to particle/antiparticle pairs. Imagine...

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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?”