HINT (a) the hoop's translational kinetic energy (in J) J

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: A 140-lb man carries a 5-lb can of paint up a helical staircase that encircles a silo with radius 20…

A: Total weight is , w=140+5=145 lb  Radius ,R=20 ft  Height or displacement, d=80 ft  We have to find…

Q: Question 3 Which of these statements is true? The dot product gets bigger when the vectors are more…

A: The answer to the problem is given below

Q: If we know the total energy in a system is 140 J, and we know the Potential Energy is 100 J.  What…

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Q: 5. A block of mass me is at the top (h from the bottom) of a movable wedge with angle and mass mw.…

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Q: Why is work a dot product of force and displacement, and not a cross product

A: Work is scaler quantity which has only magnitude, no direction.  Force and displacement are vector…

Q: 4. Show that a 5 =la+5| -|a-5|". HD

A:

Q: 1. Which of the following does negative work on the system? Bearing Friction Bearing friction AND…

A: Work done by a force on an object is defined as the product of the force and the displacement of the…

Q: (a) A 200-kg swordfish swimming at 5 m/s rams a wooden yacht that is at rest. It’s a sword…

A:

Q: (a) Find the scalar product of the two vectors A = 4.00î + 7.00ĵ and B %3D = 5.00î – 2.00ĵ %3D (b)…

A: Scalar product of two vectors A and B, making an angle θ with each other, is given as A•B = ABcosθ…

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: Q4:- (1)- The magnitude of two vectors be (4) and (5) and the value of their scalar product is (10).…

A: Hai, since there are multiple questions posted, we will answer the first question.

Q: A ball is released from a height of 11 mand weighs 83 N. What is the magnitude of the total change…

A: The change in gravitational potential energy with change in height from ground can be expressed as;…

Q: A 350g cart is given 1.4J of translational kinetic energy before it goes up a 25cm tall ramp without…

A: Step-1   Using the energy conservation theorem on cart1,   KE1i + PE1i = KE1f + PE1f   here, KE1i =…

Q: A 6260-kg satellite is in a circular earth orbit that has a radius of 3.17 x 10' m. A net external…

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Q: An object thrown at a certain angle to the ground moves in a curved path and falls back to the…

A: Work done by the force of gravity on an object depends solely on vertical displacement. Vertical…

Q: F=12i+7j Ax = 17i + 2j What is the work done by Fon the object over a displacement of Ax given?

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Q: A point mass of 1.2 kg at the end of a cord is rotated on a frictionless horizontal surface in a…

A: Given that: r= 0.2 m w= 3.8 rad/s m= 1.2 kg We know that I= mr2 where I is the moment of inertia…

Q: , how much work is done by the man against gravity in climbing to the top?

A: If the acted force is F and for the force displacement is dr then We know work ,…

Q: Give a reason why the dot product of two vectors is know as the scalar product?

A: The dot product between two vectors is nothing but the component of one vector along the direction…

Q: (a) Which component of the horizontal axis wind turbine can be considered as the brain of the…

A: (a) The brain of a wind turbine is called the nacelle. A nacelle is a housing that contains all of…

Q: a 0.4-kg billiard ball is released from a height of 6m and rolls on a frictionless circular track of…

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Q: A person throws a 0.150 kg ball with a speed of 40.4 m/s at an angle of 28.00 to the horizontal.…

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Q: In Maxwell's Wheel experiment, which of the following can be said? а) b) c) d) Kinetic energy is…

A: The Maxwell’s wheel experiment is aimed to investigation over the conversions of energy between…

Q: Determine the dot product and cross product of the 2 given vectors. A = 3î - 16ĵ- 15k B = −55î + 2ĵ…

A: Determine the dot product of vectors.

Q: An oxygen cylinder of mass 16.0 kg is pulled up a mountain side at a constant speed of 2.2 m/s by a…

A: Given: Mass of cylinder m = 16.0 kg. Speed of cylinder in upward inclination direction = 2.2 m/s.…

Q: Compute the work required to build a concrete column of height 5m and square base of side length 2m.…

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Q: When the speed of your plane is tripled what is the ratio of new kinetic energy compared to the…

A: The expression for the original kinetic energy of the plane is given as Uk=12mv2     (1) From the…

Q: Rewrite the unit of work (N∗m) in base units.

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Q: NT2E-WBT23: VECTORS ON A GRID-VECTOR (CROSS) PRODUCT Four vectors are shown below superimposed on a…

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Q: how much does the cat increase the kinetic energy of the cat-ring system if the cat crawls to the…

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Q: Find the work done in joules by gravity as an object of the mass m310 kg is raised up at constant…

A: Mass = 10 kg  Displacement = h2 - h 1 = 80m - 22 m =  58 m As we know Workdone  is given by W  Which…

Q: The top of a fence post is hit by a pile driver and it is partly driven into the ground. The…

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Q: rrrA solid spherical jewel rolls smoothly from rest down a ramp. The jewel descends a vertical…

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Q: Consider the vectors a = 6i +2j+9k and b = 7i- 6j - 6k, where i, j, and k are mutually-…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Find the dot product of two vectors shown in the figure. The magnitude of the vectors are A= 3 and B…

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Q: A certain object starts with 90 J of potential energy. The object is then slightly tipped and has 93…

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Q: Given the following vectors, calculate the cross product asked for: a=-21-33 5=61+43 a x =? O 10…

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Q: Calculate the dot product of the two vectors: A=i+4j-3k and B=j-2k O 10 > O11 O3

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Q: What energy transformations occur during the process of drawing a bow and letting the arrow fly…

A: We know that the energy of the universe is constant. The energy neither be created nor be destroyed,…

Q: A 50 N force is applied to the system for 15 seconds that makes the system displaced for 150 cm from…

A: Given data: The applied force is, F= 50 N The time for which force is applied is, t= 15 sec The…

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.