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: 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: Three forces act on a particle that moves with unchanging velocity (2.4 m/s )i + (-6.5 m/s )j. Two…

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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: Starting from rest, a 28.0 kg28.0 kg child rides a 8.75 kg8.75 kg sled down a frictionless ski…

A: Given  Mass of the child mc=28.0kg Mass of the sled ms=8.75kg Total mass M=mc+ms M=28.0+8.75…

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

A: Newton's second law of motion states that the acceleration of an object is directly proportional to…

Q: An object with a mass of 1.76 kg is initially at rest upon a horizontal, frictionless surface. An…

A: Mass = 1.76 kg Force = 3.04 N Time = 2.08 sec Velocity =?

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 100 gram wooden block is placed on an inclined ramp and released from rest. The ramp is tilted at…

A: Given: The mass of the object is 100 g. The coefficient of the static friction force is 0.3. The…

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 particle of mass 4.00 kg, moving on a horizontal table top, has an acceleration vector (in m/s2)…

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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: Three blocks (as shown in the figure) are released from rest and they start to accelerate with a…

A: Step 1: here we have derived the equation of motion of the masses Step 2: here we have calculated…

Q: A soccer player starts from rest and accelerates forward, reaching a velocity of 9.00 m/s in 3.00 s.…

A: The equation of motion is, v = u + at9m/s =0+a3.0sa=3m/s2

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: Some rubber bands pulling on an object cause it to accelerate. If 5 rubber bands cause it to…

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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: A 2 kg golf ball moves along an x axis according to x(t) = 1013 – 2.80f2 + 7.4t + 15, with x in…

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Q: What is the coefficient of friction between the tires and the surface?

A: Giiven: m= 2500 kg  Initial velocity =vi=14.0 m/s  Final velocity= 0 m/s  accelerartion due to…

Q: A dockworker applies a constant horizontal force of 71.0N to a block of ice on a smooth horizontal…

A: According to the given data F=70 N S=10.5m t=4.80 sec. We need to find What is the mass of the…

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

A: The tension in the rope is 7.84 N.

Q: 1. A 0.10kg block slides up a 16.00 inclined surface with an initial speed of 6.00. The coefficient…

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Q: net force of 20 N is acting on a falling object. The object experiences air resistance of 6.0 N. If…

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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: -5 A flea jumps by exerting a force of 1. 80 x 105 N straight down on the ground. A breeze blowing…

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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: 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 1.9 kg otter starts from rest at the top of a muddy incline 84.1 cm long and slides down to the…

A: Given that, The mass of otter : m = 1.9 (kg)The length of muddy inclination : d = 84.1 (cm)The time…

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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Q: A box of mass 7.47 kg is being pushed along a frictionless floor by a force of magnitude 18.16 N…

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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.