The following statement are correct about scalar and vectors except: A Scalar is a real numbers and examples of these are Density, Work and Energy B Impulse and Momentum are the examples of Vector C A scalar has a real numbers while vectors have a direction only D) A vector is a real number with direction e.g. work

Q: Scalar or dot product of vectors -7 i+ -7j+ -8 k and 9 i+ -3 j+ -2 k is: Answer:

A: Given vectors: Vector A= [ -7i + (-7j) + (-8k) ] = ( -7i - 7j - 8k ) Vector B = [ 9i + (-3j) + (-2k)…

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: A chain of length 4 m is kept on a table. 2 m of the chain hangs freely from the table’s edge. The…

A: Given: length = 4 m table = 2 m mass of the whole chain = 8 kg

Q: How much work is done by the force of gravity in moving a 10 kg block from an initial height of 2 m…

A: Given:   Mass of block, m = 10 kg initial height, h1 = 2 m final height, h2 = 10 m   Value Used:…

Q: Calculate the dot product between the following vectors a) A=i-2j+5k and B=-3i+2j+2k b) A=-3i+j+2k…

A: (a) Let A and B denote the two vectors, and C denote the dot product of the two vectors. Therefore,…

Q: Work is a _______ a) Scalar quantity b) Vector quantity c) Foreign quantity d) Magnitude less…

A: To answer: Work is a _______

Q: Scalar or dot product of vectors O i+2j+ -9 k and 1i+ 9j+2k is: Answer:

A: Given that two vectors and We have to determine the scalar or dot product of the given vectors.

Q: 4. Determine the dot product of the following vectors; A = 11.5 m, 39.0⁰ B = 8.50 m, 17.0⁰

A:

Q: The force on a particle is directed along an x axis and given by F= Folx/xo-1) where x is in meters…

A: Given that Force F=F0(x/x0-1) Where F0= 1.4 N x0=4.1 m.

Q: Can you please answer number 3 and show all of the work and the steps to the solutions

A: Given data The vector A is given as A = -3i – 9j. The vector B is given as B = -6i + 5j The vector C…

Q: An object having the capability to do work is said to possess: A) Inertia B) Force C) Pressure D)…

A: An object having capability to do work is said to possess

Q: Part (a) Write an equation for the work done by gravity as a 100-kg object falls from a height R,…

A:

Q: According to the work-energy principle, the NET work on a system causes: an increase in the kinetic…

A: Work Energy theorem state that Total work done by conservative, non conservative and pseudo forces…

Q: Find the dot product of the vectors A = 5m and B = 7m perpendicular to each other. A) 5 B) 8…

A:

Q: Choose the correct statement a A displacement must cause work b Work is not dependent on…

A: We know that the workdone is given as the product of applied force and the displacement of the…

Q: What is the scalar product of the two vectors shown in figure? 20 - 121° 21-2N 140°

A: Given : →A→=21.2  N→B→=19  cm=0.19 m

Q: 7.) Estimate the work you do to mow a lawn 10 m by 20 m with a 50-cm-wide mower. Assume you push…

A: Given  lawn  size = 10 m x 20 m mower width = 50 cm mower.  force = 20 N . To find out Work done

Q: A student pushes a textbook 1.0 m across the table.  She uses an applied force of 5.0 N against a…

A: Net work done is the sum of work done by the student and by the force due to kinetic friction.

Q: When you apply a force F= 360 N to the left to move a box by a distance 8.8 m to the left, what is…

A: F=360 Nd=8.8 m

Q: Estimate the work (in J) you do to mow a lawn 20 m by 20 m with a 60-cm-wide mower. Assume you push…

A: in this question  we use simple work equation.

Q: A force varies with position x according to f(x)=(x-1),(where F is in Newton and x is in meter)find…

A: in given problem we have variable force so we have to use integration

Q: The work done by the static friction force is always: a) parallel to the surface b) perpendicular…

A: Static frictional force always act opposite applied force Consider the following example If applied…

Q: Calculate the scalar product of the two vectors shown in the figure. Pay attention to the units.…

A:

Q: A force of F(x) = x2 - cos(3x) + 4 measured in Newtons and where x is in meters, acts on an object.…

A:

Q: Find the scalar product of the vectors in the figure below, where 0 119° and F = 33.5 N. %3D 132°…

A: F = 33.5 N  d = 17.3 cm= 0.173 m  Angle between both the vectors = 19 degree

Q: the following is an example of zero work and which one is an example of negative work?    a) The…

A: Work is done when the force is applied to an object and it causes the object to displace. The work…

Q: Work is (select all that apply) the force times the parallel displacement the dot product of force…

A: Solution: Work done is defined as the dot product force and displacement where θ is the angle…

Q: If the sizes of the vectors F and E in the figure are 6 and 5 units, what is the scalar product of…

A:

Q: Scalar or dot product of vectors 2 i+-6j+ -3 k and -2 i+-4j+-8 k is:

A: A→ = 2i^ - 6j^ - 3k^B→ = -2i^ - 4j^ - 8k^

Q: What does the work done by friction convert into?

A: Friction Friction is the force that resists movement F = μN Where  μ is the co-efficient of friction…

Q: If the unit of your answer is kg m/s, which of the following types of quantities could your answer…

A: Power = work/time = (F s)/t = (m a s )/t            = (Kg * (m/s2)*m)/s             = Kg m2/s3

Q: Acontainer with a mass of 5 kg is lifted to a height of 8 m How much work is done by the…

A: Given, Mass, m=5 kg Height, h=8 m To Find: Work done by gravitational force and external force…

Q: A 39 kg child is jumping on a trampoline with a spring constant of 4700 N/m. On a particular jump,…

A: solution: Apply the conservation of energy for this motion. At the maximum height, the speed becomes…

Q: Find the value of force if work done is 520 J and displacement is 42 m

A: Given : Work done (W) = 520 J Displacement (d) = 42 m

Q: How to express the work done by the force of gravity along a curved path? mig A)- mg Ax B)+ m g A(y+…

A: The work is done by the force is depends on the magnitude of the force and the charge in the…

Q: A force of 20 N moves an object in the direction of the force.  The work done when the object moves…

A: Given data:  Force (F) = 20 N Initial position = 2.0 m Final position = 4.0 m Required: The work…

Q: uilding. One of the movers is pushing on the crate with a force of constant magnitude F₁ arallel…

A:

Q: A huge truck of mass 10800 kg is moving with the same kinetic energy as a 1200 kg small car moving…

A: