Consider the dot product of vectors C and D The sign of C • Dis: C A) 0 B) Negative C) Positive D) Could be Negative or Positive E) More information is needed

Q: A coil spring which has a normal length of 13 cm is stretched 2.5 cm by a force of 34 N. How much…

A: Finding spring constant K   K=F/(elongation)   elongation in 1st case=2.5 cm F=34 N K=34/2.5 = 13.6…

Q: Work done When the direction of the force is in the direction of the displacement When the direction…

A: The work done by the object is expressed as follows. W=F·d Here, F is the force and d is the…

Q: Juan, Jose, and Jokoy are pushing a table with a constant 487 N force. Juan is pushing the table…

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Q: Calculate the work done in lifting a 520-NN barbell 1.8 mm above the floor. Express your answer to…

A: Mass of barbell = 520 kg  Height above the floor upto which the barbell is lifted = 1.8 m

Q: A person pushes a wheelbarrow with a horizontal force of 50 N on levele ground over a distance of…

A: Drawing Free body diagram of the wheelbarrow We know that workdone W=F×D×cos(θ)…

Q: The work done by a force is zero when the force is to the displacement.

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Q: •Calculate / about x-axis om, = 3kg, m, = 5kg •Calculate / about axis along x direction at y=-2m…

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Q: A variable force of 6x 2 pounds moves an object along a straight line when it is x feet from the…

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Q: Plot the graph of Potential energy (y- axis) vs position of ball (x- axis) Plot graph of Kinetic…

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Q: A force of 80 newtons applied in the IO V = [3,4] causes the displacement of the object from the…

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Q: Write down The relationship between the total work done on an object and how the object’s speed…

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Q: a = 1.2 m b = 1.8 m C = 4 m Force AB = 500 Newtons FAB Find the Projected Force to direction AC in…

A: unitary vector along AC e^AC=AC→AC⇀=bi^+ck^-cj^b2+c2+c2          AC→=C→-A→=bi^+ck^-cj^b2+2c2

Q: Juan, Jose, and Jokoy are pushing a table with a constant 434 N force. Juan is pushing the table…

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Q: Discuss the origin of the unit horsepower.

A: Horsepower unit was first time used by James Watt in 1782. The  story refers that James Watt uses…

Q: Construct Your Own Problem - Consider humans generating electricity by pedaling a device similar to…

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Q: A couple of 500 Joule is applied on a box counter-clockwise. Compute the force F of the Couple if…

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Q: Using the scalar product of two vectors, determine the angle between the two vectors listed below:…

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Q: A variable force of 7x-2 pounds moves an object along a straight line when it is x feet from the…

A: Solution

Q: A car is towed using a force of 1300 newtons. The chain used to pull the car makes a 23° angle with…

A: Given data:  Force (F) = 1300 N Angle with horizontal (θ) = 23° Displacement (d) = 9 km Required:…

Q: TOPIC: Applications of Integration Length of Curves Surface of Revolution Centroids of Plane Areas…

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Q: Juan, Jose, and Jokoy are pushing a table with a constant 542 N force. Juan is pushing the table…

A: The free-body diagram of the table is given as, Here, F denotes the applied force.

Q: Is there WORK DONE  or NO WORK DONE? 1. You set the bag down in the garden.  2. Now you are…

A: First, let's us understand the meaning of Work. Work is defined as the product of the force…

Q: mass of the object

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Q: horizontal force of 25 N pulls a box along a table. How much work does it exert in pulling the box…

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Q: Explain if it is possible for a system to have negative potential energy

A: Answer Potential energy is the energy stored in any system or object by virtue of its position.…

Q: 10. The dot product of a, · a, is equal to: а. 1 b. 0 C. C. az d. -1

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Q: Determine the work done by the frictional force in moving a block of mass m from point 1 to point 2…

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Q: Juan, Jose, and Jokoy are pushing a table with a constant 542 N force. Juan is pushing the table…

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Q: A pail and its contents weigh 80 lbs. The pail is attached to the end of a 100 ft rope that weighs…

A: rope weight=80 lbspail weight = 10 lblength of rope =100 ft

Q: For a wind turbine that is used to produce electricity for a utility company, the power output per…

A: Given data: Output power (P) = 8.4 kW/m2 Required: Power valve in hp/ft2

Q: Prove the cosine theorem using the properties of the scalar product.

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Q: Juan, Jose, and Jokoy are pushing a table with a constant 577 N force. Juan is pushing the table…

A: Given: The force is F=577 N. The Jokoy is pushing with the angle of θ=79°. The distance moved by…

Q: 150 m Complete the following statements to explain how the conservation of energy principles apply…

A: In this problem, the second image is blurred so we will solve the question shown in first image.

Q: Calculate the value of force applied if work done is 190 J and displacement is 12 m.

A: Work done by the force, W=190 J Displacement of the object, d=12 m Work done is the product of force…

Q: A mass of 10 kg is at a point A on a table. It is moved to a point B. If the line joining A and B is…

A: Given : Mass(m) = 10 kg work done by gravity is given by the expression, W= m g h where h = vertical…

Q: true or false : 1- Newton = force unit x meter     (        ) 2- the dot product between two…

A: Newton = force unit x meter. This statement is False. Reason: Newton is the SI unit of force. Given…

Q: meanin physics everyday usage. Give an example of an action a person could do that "feels like work"…

A: Work is defined mathematically as,  W=Fdcosθ Here, F is force, d is displacement and θ is angle…

Q: Calculate the value of force applied if work done is 268 J and displacement is 24 m.

A: Work done is the dot product of force vector and displacement vector. W=F→.S→ = FScosθIf F→ and S→…

Q: A 20m rope is hanging over the edge of a 50m building. Attached to the end is 2 kg bucket carrying…

A: Given, height of the building=50m length of the rope=20m Weight of the bucket=2kg Initial weight of…

Q: A custodian pulls a vacuum 13.5 m with a 33.9 N force at a 55.0° angle, against a 14.1 N friction…

A: Given data: Displacement of the vacuum is, d= 13.5 m Force applied on the vacuum by custodian is, F…