For item numbers 21, refer to this situation: After being struck by a stick, a ball with a mass of 0.10 kg  slows down as it rolls on a level floor. The frictional force that acts on the ball is 0.32 N, to the left. 21. What is the magnitude and direction of the ball's acceleration?   0.31 m/s^2, to the left   0.31 m/s^2, to the right   3.2 m/s^2, to the left   3.2 m/s^2, to the right

Q: A 80.0-kg skier starts down a 100-m high, 15.0° slope on regular skis. The coefficients of friction…

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Q: A 7kg block is placed on an inclined that is 24 degrees to the horizontal. It has a coefficient of…

A: Given:- The mass of the block m = 7 kg  The inclined plane at an angle of 24 degrees to the…

Q: A block is sliding down a ramp at an angle of 0 = 29° to the horizontal. Its initial speed is 1.2…

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Q: A Force of x2 + 2 Newtons is pulling a 6 kg block at an angle of 24 degrees. The coefficient of…

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Q: A boat has a mass of 6.43 x 10³ kg. Its engines generate a drive force of 4.5 x 103 N due west,…

A:

Q: A block of mass 1.90 kg is accelerated across a rough surface by a light cord passing over a small…

A: a) a = 1.979m/s2 b   Increasing, then decreasingc) x = 0.35ma = 1.9808 m/s2 d) x =…

Q: The figure shows two blocks are connected over a massless, frictionless pulley. The mass of block 2…

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Q: 8. Block B weighs 710 N. The coefficient of static friction between the block and horizontal surface…

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Q: 4. An 81-kg basketball player slides into the second base. The coefficient of kinetic friction…

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Q: In a circus performance, a monkey on a sled is given an initial speed of 3.1 m/s up a 26◦ incline.…

A: Given that :v=3.1 m/sθ=26°μk=0.71m=20.2 kgwhere,v is the initial speedθ is the anglem is the massμk…

Q: a μ S 0 Consider an object of mass m starting from rest and sliding down a ramp. The ramp makes…

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Q: slides? 1. 4.68 m/s^2 2 1.23 m/s^2 3 6.08 m/s^2 4 1.76 m/s^2

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Q: A 23 kg box is dragged 4.7 meters across the floor by a rope that is angled at 66degrees with the…

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Q: a window cleaner pushes his brush over a window vertically. the person pushes the brush at a…

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Q: A single-celled animal called a paramecium propels itself quite rapidly through water using its…

A: Given: Drag coefficient b = 0.330 kg/mSpeed v = 0.000137 m/sNow, the drag force is fd = -bv2As it is…

Q: Blocks with masses of 3.0kg, 4.0 kg, and 5.0 kg are lined up in a row on a frictionless table. All…

A: Given: The mass of the first block is m1=3 kg. The mass of the second block is m2=4 kg. The mass of…

Q: A 1350-kgkg car pulls a 330-kgkg trailer. The car exerts a horizontal force of 3.6 ×× 103 NN against…

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Q: A force is applied to an initially stationary block of mass 5.70 kg that sits on a horizontal floor…

A: Given Data: The mass of a block is, m=5.70 kg The applied force on a block is, F=98.9 N The angle…

Q: Pushing a block over horizontal surfaces, a person examines their understanding of friction. In the…

A: The frictional force acts in the opposite direction of the motion of an object. If the object is…

Q: 3. A block slides down a smooth 30° inclined plane in a time t seconds. If the plane were rough the…

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Q: A horizontal force of magnitude F = 57.5 N pushes on a block of mass m = 4.7 kg. The block is on a…

A: The given situation can be represented as

Q: We start with some review problems A crate of mass 27.1 kg rests on a level surface, with a…

A: Given Data : The mass of the crate is given as m = 27.1 Kg. The force applied to the crate is given…

Q: A 1480 kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 6.43 m…

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Q: what is acceleration for block b

A: Friction force is given by the following formula: f=μN , where μ is the coefficient of friction…

Q: A horizontal force of 90.7 N is applied to a 60.5 kg crate on a rough, level surface. If the crate…

A: Given Data : The mass of the crate is given as m = 60.5 Kg. The force applied to the crate is given…

Q: Your friend asks for help moving a box across the apartment floor and tells you that the box weighs…

A: The static frictional force on the box Fs=μsW=0.42·422=177.24 N The kinetic frictional force on the…

Q: A block with a mass of 3.44 kg is sliding down an inclined surface. The surface makes an angle of…

A: The expression for the coefficient of kinetic friction by equating the forces along inclined surface…

Q: A shopper pushes a 6.1 kg cart at constant of 1.20 m/s speed along a rough horizontal surface by…

A: Visualize the Problem:

Q: You are lowering two boxes, one on top of the other, down the ramp shown in the figure by pulling on…

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Q: What is the tension (in N) in the rope?

A: The tension in the rope is 7.84 N.

Q: You are quite excited with the lesson in friction that you learned in Physics 1A that you decide to…

A: Given Data:- Mass of the glass cup is m=0.15 kg Initial velocity of the cup is vi=2.8 m/s Final…

Q: *44. The drawing shows a large cube (mass = 25 kg) being accelerated across a horizontal…

A: Given values: Mass of the large block, M=25 kg Mass of small block, m=4.0 kg Coefficient of static…

Q: A crate of mass 33.9 kg rests on a level surface, with a coefficient of kinetic friction 0.142. You…

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Q: Two blocks connected by a rope of negligible mass are being dragged by a force at a 21° angle above…

A: Given that m1 = 10 kg m2 = 26 kg F = 117 N angle = 21 coeff of friction = 0.136

Q: Question 9. Traveling at a speed of 16.1 m/s, the driver of an automobile suddenly locks the wheels…

A: The initial speed is The coefficient of the kinetic friction is The time is t = 1.21 sLet the speed…

Q: a sled, with a mass=6.50kg, is sliding down a snow-covered hill that has a slope of 45.0 degrees.…

A: Draw the free-body diagram of the mass as shown velocity.

Q: You are pushing a box, apply Fa = 90 N.  The box's mass is 25 kg.  The coefficients of friction are…

A: Given- Mass of box ,m =25 kg            Applied force on the box , Fa= 90 N          coefficients of…

Q: A contestant in a winter games event pushes a 55.0 kg block of ice across a frozen lake as shown in…

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Q: 18.0 kg 27.0 kg 3.50 5.75 m

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Q: An object of mass 3.1 kg with a certain initial speed on a horizontal surface comes to rest after…

A: Given, the mass of the object: m=3.1 kg The distance traveled before stopping: d=15.9 m The…

Q: A boat has a mass of 6769 kg. Its engines generate a drive force of 4039 N, due west, while the wind…

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.