In the system shown in the figure, suppose the block has a mass of 3.4 kg...
In the system shown in the figure, suppose
the block has a mass of 3.4 kg , the spring has a force constant of
530 N/m , and the coefficient of kinetic friction between the block
and the floor is 0.19.
A) Find the work done on the block by the spring and by friction as the block is moved from point A to point B along path 2. Express your answers using two significant figures separated by a comma. WspA, WfrA = _____ J
B) Find the work done on the block by the spring and by friction if the block is moved directly from point A to point B. Express your answers using two significant figures separated by a comma. WspB, WfrB = ____ J
Homework Answers
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In the system shown in the figure, suppose
the block has a mass of 3.4 kg...
In the system shown in the figure, suppose the block has a mass of 3.4 kg...
In the system shown in the figure, suppose the block has a mass of 3.4 kg , the spring has a force constant of 550 N/m , and the coefficient of kinetic friction between the block and the floor is 0.19. Find the work done on the block by the spring and by friction as the block is moved from point A to point B along path 2.
A factory worker pushes a crate of mass 32.0 kg a distance of 4.20 m along...
A factory worker pushes a crate of mass 32.0 kg a distance of 4.20 m along a level floor at constant velocity by pushing horizontally on it. The coefficient of kinetic friction between the crate and floor is 0.25. What magnitude of force must the worker apply? Express your answer using two significant figures. F = N Part B How much work is done on the crate by this force? Express your answer using two significant figures. W = J ...
Exorciso 6.42 A block of ice of mass 3.90 kg is placed against a horizontal spring...
Exorciso 6.42 A block of ice of mass 3.90 kg is placed against a horizontal spring that has force constant k = 170 N/m and is compressed a distance 2.80x10-2 m. The spring is released and accelerates the block along a horizontal surface. You can ignore friction and the mass of the spring. Part A Constants Calculate the work done on the block by the spring during the motion of the block from its initial position to where the spring...
< Trabajo C Exercise 5.8 A block on a level frictionless surface has two horizontal forces...
< Trabajo C Exercise 5.8 A block on a level frictionless surface has two horizontal forces applied, as shown in the figure(Figure 1). Part A What force Fy would cause the block to move to the right with normal force on the block to be the same as its weight Express your answer using two significant figures. Figure ( 1 of 1 VAEDRO? F - F2 = ? Submit Request Answer 60° 130° Part B F = 90 N If...
A 2.65 kg block on a horizontal floor is attached to a horizontal spring that is...
A 2.65 kg block on a horizontal floor is attached to a horizontal spring that is initially compressed 0.0380 m . The spring has force constant 810 N/m . The coefficient of kinetic friction between the floor and the block is 0.42 . The block and spring are released from rest and the block slides along the floor. What is the speed of the block when it has moved a distance of 0.0200 m from its initial position? (At this...
1. The block shown in (Figure 1) has mass m = 7.0 kg and lies on...
1. The block shown in (Figure 1) has mass m = 7.0 kg and lies on a fixed smooth frictionless plane tilted at an angle θ = 24.5 ∘ to the horizontal. a. Determine the acceleration of the block as it slides down the plane. Express your answer to three significant figures and include the appropriate units. b. If the block starts from rest 19.0 m up the plane from its base, what will be the block's speed when it...
ConstantsPeriodic Table Part A The displacement of a standing wave on a string is given by D-3.4 sin(0.67r) cos(44t), where r and D are in centimeters andt is in seconds. What is the distance (cm) be...
ConstantsPeriodic Table Part A The displacement of a standing wave on a string is given by D-3.4 sin(0.67r) cos(44t), where r and D are in centimeters andt is in seconds. What is the distance (cm) between nodes? Express your answer using two significant figures. d- cm Submit Request Answer Part B Give the amplitude of each of the component waves. Express your answers using two significant figures. Enter your answers numerically separated by a comma A, A2 cm Submit Part...
A block with a mass of 32.5 kg is pushed with a horizontal force of 150...
A block with a mass of 32.5 kg is pushed with a horizontal force of 150 N. The block moves at a constant speed across a level, rough floor a distance of 6.50 m. (a) What is the work done (in J) by the 150 N force? J (b) What is the coefficient of kinetic friction between the block and the floor?
Problem 9.41 Part A A 3.0-kg block slides along a frictionless tabletop at 8.0 m/s toward...
Problem 9.41 Part A A 3.0-kg block slides along a frictionless tabletop at 8.0 m/s toward a second block (at rest) of mass 4.5 kg. A coil spring, which obeys Hooke's law and has spring constant k = 720 N/m , is attached to the second block in such a way that it will be compressed when struck by the moving block. (Figure 1) What will be the maximum compression of the spring? Express your answer using two significant figures...
Use g = 9.8 m/s? Block A (mass 40 kg) and block B (mass 80 kg)...
Use g = 9.8 m/s? Block A (mass 40 kg) and block B (mass 80 kg) are connected by a string of negligible mass as shown in the figure. The pulley is frictionless and has a negligible mass. If the coefficient of kinetic friction between block A and the incline is k = 0.21 and the blocks are released from rest, determine the change in the kinetic energy of block A as it moves from C to D, a distance...
Exorciso 6.42 A block of ice of mass 3.90 kg is placed against a horizontal spring that has force constant k = 170 N/m and is compressed a distance 2.80x10-2 m. The spring is released and accelerates the block along a horizontal surface. You can ignore friction and the mass of the spring. Part A Constants Calculate the work done on the block by the spring during the motion of the block from its initial position to where the spring...
< Trabajo C Exercise 5.8 A block on a level frictionless surface has two horizontal forces applied, as shown in the figure(Figure 1). Part A What force Fy would cause the block to move to the right with normal force on the block to be the same as its weight Express your answer using two significant figures. Figure ( 1 of 1 VAEDRO? F - F2 = ? Submit Request Answer 60° 130° Part B F = 90 N If...
ConstantsPeriodic Table Part A The displacement of a standing wave on a string is given by D-3.4 sin(0.67r) cos(44t), where r and D are in centimeters andt is in seconds. What is the distance (cm) between nodes? Express your answer using two significant figures. d- cm Submit Request Answer Part B Give the amplitude of each of the component waves. Express your answers using two significant figures. Enter your answers numerically separated by a comma A, A2 cm Submit Part...
Problem 9.41 Part A A 3.0-kg block slides along a frictionless tabletop at 8.0 m/s toward a second block (at rest) of mass 4.5 kg. A coil spring, which obeys Hooke's law and has spring constant k = 720 N/m , is attached to the second block in such a way that it will be compressed when struck by the moving block. (Figure 1) What will be the maximum compression of the spring? Express your answer using two significant figures...
Use g = 9.8 m/s? Block A (mass 40 kg) and block B (mass 80 kg) are connected by a string of negligible mass as shown in the figure. The pulley is frictionless and has a negligible mass. If the coefficient of kinetic friction between block A and the incline is k = 0.21 and the blocks are released from rest, determine the change in the kinetic energy of block A as it moves from C to D, a distance...
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