1. How much mechanical work is done on a brick wall if a man pushing with a 250 N force fails to move the wall? O 2.5 J ) 250 J 125 J OOJ

Q: 3. A boy pulls a 27.0-kg box with a 170-N force at 33° above a horizontal surface. If the…

A:

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

A: Given data: Force: Fx=x-1

Q: 1. How much work is needed to lift an object with a weight of 350N to a height of 3m?

A: If you want to do 2nd questions, please reupload the second questions and mensions the only one…

Q: Calculate the work done by a force of 70 N in lifting a load of 5kg to a height of 10m (g = 10ms2)

A: Work done is calculated as:   Work = Force x Displacement W = F.d…

Q: A chain lying on the ground is 10 m long and its mass is 60 kg. How much work (in J) is required to…

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Q: A car does a work 15060 J in just 3.00 seconds. What is the power output of the car in horsepower

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Q: 2. Shelley pulls her little sister in a wagon with a constant force of 50 N over a distance of 100…

A: Since you have asked multiple questions in a single request, we would be answering only the first…

Q: 4. A crate is being lifted into a truck. If it is moved with a 4270 N force and 6755 J of work is…

A: Write the expression for the work done. Here, F represents the force and d represents the…

Q: 5. What is the KE of a 478 kg object that is moving with a velocity of 15 m/s? Classify the…

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Q: Question 8 A machine does 2500 J of work in 1 min. What is the power developed by the machine? A 42…

A: Given Work done by Machine = 2500 J Time taken by Machine = 1 min = 60 sec We have to calculate the…

Q: 3. A big man is towing a large box with a cord that makes an angle of 25 degrees with the…

A: Work done is the dot product of force and displacement. The unit of work done is the joule(J).…

Q: 12. If 6 J of work is needed to stretch a spring from 10 cm to 12cm and another 10 J is needed to…

A: Let, W1 = 6 J W2 = 10 J

Q: 2. A dog is pulling a sled up a hill. If the rope used to pull the sled is subtended by an angle of…

A:

Q: How much work (in J) must be done to lift a stack of bricks, which has a mass of 50 kg, from the…

A: Given data The given mass is m=50 kg The height is h=8 m The accleration due to gravity is g=10 m/s2…

Q: 1. What amount of work is done when a 5 newton object is moved a distance of 10 meters?

A: Given data:   Force (F) = 5 N Distance (d) = 10 m Required: Work done (W)

Q: 11. Can a normal force on an object ever do work on the object? Explain.

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Q: Spiderman uses his spider webs to save a runaway train moving about 60 km/h. His web stretches a few…

A: The initial velocity of the train,  v=60 km/hr The mass of the train, m=104 kg The moving object…

Q: A motorist runs out of gas on a level road 190m from a gas station . The driver pushes the 1,220 kg…

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Q: A person pulls a crate 41.3 meters along a horizontal floor by a constant force 118.4 N, which acts…

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Q: 1) A student does 125.0 J of work lifting a 12.0 kg book. How high was the book lifted? 1.06m hgh 2)…

A: Given data: The work done is lifting the book is W=125 J. The velocity of book on frictionless ramp…

Q: 2. A 1200 kg car is moving at 30 m/s and speeds up to 35 m/s. Find the work done on the car.

A: According to the work energy theorem, the work done is equal to the change in Kinetic energy,…

Q: 13. A 700-kg horse whose power output is 1.0 hp is pulling a sled over the snow at 3.5 m/s. Find the…

A:

Q: what is the kinetic energy in joules of a 1120-kg automobile traveling at 88 km/h?   2. how much…

A: Given, Mass, m = 1120 kg Speed, v = 88 km/h = 88×518=24.44 m/s

Q: 2. A force of 3ON is required to maintain a spring stretched from its natural length of 12cm to a…

A: As per the guide lines first question is answered. Kindly post other as new post 2. The force…

Q: Question 4 Save Answer A force of 25N is applied on a block of mass 1kg allow it to move a distance…

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Q: 2. A force of F(x)-2x-cos(4x)+8, x is in meters, acts on an object. What is the work required to…

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Q: 7. Determine the total work required to accelerate a vehicle of mass 1500 kg from 10 m/s to 25 m/s.

A: Given, Mass , m = 1500 kg Initial velocity = 10m/s Final velocity = 25m/s Work done = change in…

Q: 5. Calculate the work being done on 2000 N crate, being lifted 2 meters off the ground by a crane.…

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Q: 3. How much work is done on a small car if a 3150 N force is exerted to move it 75.5 m to the side…

A: 3) The expression for find work done is W=F·s Substitute values in the above equation…

Q: Q3. Find the amount of work done in lifting a body of 5 kg through 10 m. Take g = 10 m/s?. O 5J O 15…

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Q: 15. The figure below shows the acceleration of a 10-kg package that is accelerated to a maximum…

A: 15) Work done = area of force displacement graph work done = m * (area of acceleration -…

Q: 4. A force of 80 N used to push a chair across a room does 320 J of work. How far does the chair…

A: Solution as

Q: How much work is done in moving a 130-kg crate along a rough floor 3.6 m without acceleration if the…

A: Solution: As there is no acceleration, the applied force,F =…

Q: 15. The figure below shows the acceleration of a 10-kg package that is accelerated to a maximum…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A bulldozer does 2,000,000J of work when applying a 2,000 N force to a pile of sand. How far does it…

A: Given that, Work done =2000000 J Force =2000 N

Q: 3. A weightlifter lifts 100 kg up a distance of 1.5 m. 100 kg has a weight force of 1000 newtons.…

A: Given: The mass is lifted by a weightlifter 100 kg. The distance traveled by the weight is 1.5 m.

Q: A motorist runs out of gas on a level road 210 m from a gas station. The driver pushes the 1,120 kg…

A: The work done is defined as the force applied over the distance , thus it is calculated by using the…

Q: 5. How much potential energy does a car gain if a crane lifts the car with a mass of 2,500 kg and 20…

A: Mass of the car, m = 2500 kg Height that car lifted to, h = 20 m

Q: Starting from rest, a 1.00 kg crate is accelerated across a floor at a rate of 3.0 m/s^2 for 0.50…

A: Givenmass of crate(m)=1.00 kgacceleration(a)=3.0 m/s2 time(t)=0.50 minutes=30 secondsinitial…

Q: Calculate the work done by a 47 N force pushing a pencil 0.26 m.

A: Write the given values with the suitable variables. F=47 Nd=0.26 m Here, F is the force and d is the…

Q: 4. A student lifts a box of books that weighs 185 N. The box is lifted 0.800 m. How much work does…

A: Given Weight of the box = 185 N Distance moved = 0.800 m We have to calculate the work done by the…

Q: A warehouse worker pushes a crate across a rough floor. A frictional force of 22.5 N acts to oppose…

A:

Q: 1o 10. A force is applied along the x-direction on a 5.00 kg object. The force varies along its path…

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Q: A student applies a 20 newton force to move a crate at a constant speed of 4.0 meters per second…

A:

Q: rope applies a horizontal force of 500 N to pull a crate a distance of 2 m across the floor. A…

A:

Q: You push your much-loved 3-kg physics book 1.29 m along a horizontal table top with a horizontal…

A: Given Data Displacement of the book is d=1.29 m Horizontal force on the book is F=2.72 N Frictional…

Q: You push your much-loved 3-kg physics book 0.95 m along a horizontal table top with a horizontal…

A: Given Data:- Mass of the book is m=3 kg Distance the book is pushed is d=0.95 m Applied force is…

Q: A motorist runs out of gas on a level road 210 m from a gas station. The driver pushes the 1,160 kg…

A: Given Data : The distance for which the car is pushed is given as d=210m The mass of the car is…

Q: 2. Starting from rest, a 1.00 kg crate is accelerated across a floor at a rate of 3.0 m/s^2 for 0.50…

A: Initial speed of box; u = 0 m/s Mass of box: m = 1.00 kg Acceleration of box: a = 3.0 m/s2 Time…

Q: 5. An orange crate is dragged through 22 m along level ground by a 90 N force applied at an angle of…

A: Given: Pulling force, F = 90 N

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.