True or false  The potential energy of an object cannot be increased by internal forces. When a person intakes 3000 kcal of food, he is able to do work requiring energy of 2500 kcal. This means that the human body destroys a fraction of energy obtained from food.

Q: A student whose mass is 55 kg climbs stairs from the fırst to the third floor of the physics…

A: mass of student (m) = 55 kg vertical distance (h) = 10 m

Q: Q.5: A force F = (3¡ +4k) N acts on a particle that moves from the origin to the point (2,1,3) m.…

A: Q.5 : Option B ( 18J)

Q: In one day, a 75 kg mountain climber ascends from the 1500 m level on a vertical cliff to the top at…

A: Δh1=First day change in height=2400−1500=900 mΔh2=Second day change in height=1350−2400=−1050…

Q: The diagram shows a crate with mass m = 39.5 kg being pushed up an incline that makes an angle φ =…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: In the diagram below, a box is subjected to two forces and is displaced horizontally by a distance…

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Q: A 2.00 kg object moving in the x-y plane is under the influence of a force describe by the potential…

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Q: Find the work done in joules by gravity as an object of the mass m=11 kg is raised up at constant…

A: Potential energy is defined as U=mgh Here m is mass, h is height and g is gravitational acceleration…

Q: In the figure, a frictionless roller coaster car of mass m = 708 kg tops the first hill with speed…

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Q: An object moves from point A to point B under the influence of only two forces. Between points A and…

A: Given : Work done by conservative force = 150 J Work done by non conservative force = -100 J Total…

Q: A 0.600 kg particle has a speed of 2.00 m/s at point A and kinetic energy of 7.50 J at point B. What…

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Q: A 8.0kg box slides down a 2.0m long surface that is inclined at 53° below the horizontal. The…

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Q: An 80-N crate slides with constant speed a distance of 5.0 m downward along a rough slope that makes…

A: Given that---- force F = 80 N. Distance travel d = 5 m. Angle = 35°. Question ❓ work done by…

Q: Find the work done in joules by gravity as an object of the mass m=5 kg is raised up at constant…

A: Given : m = 5 kg h1 = 23 m h2 = 69 m g = 10 m/s2

Q: A 2 kg block is pushed 4.0 m along a horizontal floor by a force of magnitude 25 N at an angle…

A: Apologies. We only answer three parts at a time. we will answer the first three as the exact one…

Q: At a constant velocity, you are pulling a 10 kg object with a horizontal force P. How much work is…

A: Given: Mass of object, m=10 kg Displacement, s=60 cm kinetic frictional coefficient, μk = 0.58   To…

Q: In 1960, a woman in Tampa, Florida, makes one end of a car that had fallen on her son when he broke…

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Q: Bruce Springsteen is leaving the United States.  He applies a constant force of 20 N to his suitcase…

A: Given: The applied force is 20 N 25o above the horizontal. The mass of the suitcase is 8 kg. The…

Q: A single force acts on a 2.0 kg particle-like object in such a way that the position of the object…

A: it is given that the mass of the object is m=2kg we have to calculate the work done on the particle…

Q: Find the work done by (4 N) frictional force, in removing an object for (15 m) along horizontal…

A: Given data, Friction Force (F)= 4 N Horizontal Distance (d)= 15 m

Q: A 61.0-kg skier starts from rest at the top of a ski slope of height 66.0 m . If frictional forces…

A: Given: mass (m) = 61 kg height of the slope (d) = 66 m work done by friction (W) =-1.06 x 104 J…

Q: A particle travels through a three-dimensional displacement given by d = (5.00î – 3.00j + 4.00k ) m.…

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Q: Which, if any, of the following statements concerning the work done by a conservative force is NOT…

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Q: A uniform force of (3i + j) newton acts on a particle of mass 2 kg. Hence the particle is displaced…

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Q: A student slides her 80.0-kg desk across the level floor of her dormitory room a distance 4.00 m at…

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Q: In the figure, a 0.25 kg block of cheese lies on the floor of a 970 kg elevator cab that is being…

A: The normal force on the block,

Q: Identify a case where an object is moving over a surface with friction, but the frictional force…

A: When the object moves in a pure rolling motion, the work done by the friction will be zero.

Q: As an object moves from point A to point B only two forces act on it: one force is nonconservative…

A: We know that, when work is done it decreases the energy of the system. And also,  Conservative force…

Q: If it takes 4.00 J of work to stretch a Hooke's-law spring 5.0 cm from its unstressed length,…

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Q: QUESTION 1 A rough surface is inclined at 40° to the horizontal. A box of mass 1.5 kg is pulled at…

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Q: Find the work done in joules by gravity as an object of the mass m=14 kg is raised up at constant…

A: Mass of object m = 14 kg Initial height h1 =34 m Final height h2 = 75 m g = 10 m/s²     Concept…

Q: complete with camping equipment, has a mass of 85 kg In exactly 1.5 h, she climbs from an elevation…

A: Given mass = 85 kg Time t = 1.5 hr Height h1= 2700 m Height h2 = 3800 m

Q: A block slides across a rough horizontal tabletop. Which of the following is/a changed by the work…

A: Given information :- A block slides on a rough horizontal table and we need to think about the…

Q: A typical muscle fiber is 2.0 cm long and has a cross-section area of 3.1 x 10-9 m2. When the muscle…

A: The expression for the work done by the muscle fiber is given by, W=F∆L The value for the change in…

Q: Why is the work done by a conservative force the negative of the change in potential energy? The…

A: When you do conservative force  on an object, the work you do is equal to the negative change in…

Q: As an object moves from point A to point B only two forces act on it: one force is conservative and…

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Q: An object in a horizontal surface was moved by applying a constant force (N), F = 16i + 10j. If the…

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Q: A 2 kg block is pushed 4.0 m along a horizontal floor by a force of magnitude 25 N at an angle…

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Q: A uniform force of (3i + j) N acts on a particle of mass 2 kg. Hence, the particle is displaced from…

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Q: While training for breeding season, a 380 gram male squirrel does 32 pushups in a minute, displacing…

A: Given: m = 380 g = 0.38 kg  number of push ups, n = 32  height, h = 8.5 cm = 0.085  m

Q: The force an ideal spring exerts on an object is given by Fx = -kx, where x measures the…

A: Given, spring constant k= 60 N/m initial position xi=-0.20 m final position xf=0 m

Q: A 2.00 kg object moving in the x-y plane is under the influence of a force describe by the potential…

A: Write the given values with suitable variables. m=2 kgU=4x3-2y4 Jx=1 my=2 m

Q: Suppose an object at a given location has potential energy of U¡ = 10 J and kinetic Dry of K; = 20…

A: Given data:  Initial potential energy (Ui) = 10 J Initial kinetic energy (Ki) = 20 J Final potential…

Q: Find the work done in joules by gravity as an object of the mass m 5 kg is raised up at constant…

A: Mass of object m = 5 kg Initial height h1 = 26 m Final height h2 = 69 m g = 10 m/s²

Q: Name: A person's heart and head are 1.3 m and 1.8 m above the feet, repectively. Determine the…

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Q: Find the work done in joules by gravity as an object of the mass m=6 kg is raised up at constant…

A: Here, we are given Mass of object, m = 6 Kg Initial height of the object from the ground, h1 = 32 m…

Q: In the figure, a frictionless roller coaster car of mass m = 729 kg tops the first hill with speed…

A: According to the guidelines, only the first three parts will be solved. Please submit other parts in…

Q: Does the net work done on a particle depend on the choice of reference frame? yes no

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