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021 (part 1 of 2) 10.0 points The force required to stretch a Hooke's-law spring varies...
A weight lifter lifts a set of weights a vertical distance of 1.74 m. If a...
A weight lifter lifts a set of weights a vertical distance of 1.74 m. If a constant net force of 398 N is exerted on the weights, how much net work is done on the weights? Answer in units of J. The force required to stretch a Hooke's-law spring varies fr6m 0 N to 74.9 N as we stretch the spring by moving one end 14.5 cm from its unstressed position. Find the force constant of the spring. Answer in...
(1 point) Finding the work done in stretching or compressing a spring. Hooke's Law for Springs....
(1 point) Finding the work done in stretching or compressing a spring. Hooke's Law for Springs. According to Hooke's law, the force required to compress or stretch a spring from an equilibrium position is given by F(x) = kx, for some constant k. The value of k (measured in force units per unit length) depends on the physical characteristics of the spring. The constant k is called the spring constant and is always positive. Part 1. Suppose that it takes...
Suppose a force of 40 N is required to stretch and hold a spring 0.1 m from its equilibrium position. a. Assuming the spring obeys Hooke's law, find the spring constant k. b. How much work is req...
Suppose a force of 40 N is required to stretch and hold a spring 0.1 m from its equilibrium position. a. Assuming the spring obeys Hooke's law, find the spring constant k. b. How much work is required to compress the spring 0.2 m from its equilibrium position? c. How much work is required to stretch the spring 0.5 m from its equilibrium position? d. How much additional work is required to stretch the spring 0.1 m if it has...
6. A force of 30 N will stretch a spring 75cm (0.75m). Assuming Hooke's law applies,...
6. A force of 30 N will stretch a spring 75cm (0.75m). Assuming Hooke's law applies, how far will a 110-N force stretch the spring? How much work does it take to stretch the spring this far?
021 (part 1 of 2) 10.0 points Assume: Moving to the right is positive. A(n) 5.7...
021 (part 1 of 2) 10.0 points Assume: Moving to the right is positive. A(n) 5.7 g object moving to the right at 31 cm/s makes an elastic head-on collision with a 14 g object moving in the opposite direction at 17 cm/s. 31 es17 cm/s- .-31 cm/s 5.7 g 14 g Find the velocity of the first object imme- diately after the collision Answer in units of cm/s. 022 (part 2 of 2) 10.0 points Find the velocity of...
2. Question from 1.1: Rectangular Coordinatas Use Hooke's Law for springs, which states that the distance a spring is stretched (or compressed) varies directly as the force on the spring An overh...
2. Question from 1.1: Rectangular Coordinatas Use Hooke's Law for springs, which states that the distance a spring is stretched (or compressed) varies directly as the force on the spring An overhead garage door has two springs, one on each side of the door. A force of 11 pounds is required to stretch each spring 1 foot. Because of a pulley system, the springs stretch only one-half the distance the door travels. The door moves a total of 10 feet,...
part 1 &2 021 (part 1 of 2) 10.0 points pro A student sits on a...
part 1 &2
021 (part 1 of 2) 10.0 points pro A student sits on a rotating stool holding twoit's 2 kg objects. When his arms are extended horizontally, the objects are 0.7 m from the mot axis of rotation, and he rotates with angular ing speed of 0.66 rad/sec. The moment of inerA tia of the student plus the stool is 2 kgm and is assumed to be constant. The student then pulls the objects horizontally to a radius...
Caloulate the work required to stretch the following springs 1.5 m from their equilibrium positions. Assume...
Caloulate the work required to stretch the following springs 1.5 m from their equilibrium positions. Assume Hooke's law is obeyed a. A spring that required 80 J of work to be stretched 0.2 m from its equilibrium position. b.A spring that required a force of 250 N to be stretched 0.4 m from its equibrium position a. Set up the integral that gives the work done in strotching the spring 1.5 m from its equilibrium position. Use increasing Imits of...
3) Consider Hooke's Law: The force required to keep a spring in a compressed or stretched position x units from the spring's equilibrium position is F(x)-kr Calculate the work required, in jo...
3) Consider Hooke's Law: The force required to keep a spring in a compressed or stretched position x units from the spring's equilibrium position is F(x)-kr Calculate the work required, in joules, to stretch a spring 0.4 meters beyond its equilibrium position for each of the following scenarios. a) The spring requires 50 Newtons of force to hold it 0.1 m from its equilibrium position. b) The spring requires 2 Joules of work to stretch the spring 0.1 meter from...
021 (part 1 of 2) 10.0 points A student sits on a rotating stool holding two...
021 (part 1 of 2) 10.0 points A student sits on a rotating stool holding two 1 kg objects. When his arms are extended horizontally, the objects are 1 m from the axis of rotation, and he rotates with angular speed of 0.79 rad/sec. The moment of inertia of the student plus the stool is 4 kgm2 and is as- sumed to be constant. The student then pulls the objects horizontally to a radius 0.36 m from the rotation axis...
A weight lifter lifts a set of weights a vertical distance of 1.74 m. If a constant net force of 398 N is exerted on the weights, how much net work is done on the weights? Answer in units of J. The force required to stretch a Hooke's-law spring varies fr6m 0 N to 74.9 N as we stretch the spring by moving one end 14.5 cm from its unstressed position. Find the force constant of the spring. Answer in...
(1 point) Finding the work done in stretching or compressing a spring. Hooke's Law for Springs. According to Hooke's law, the force required to compress or stretch a spring from an equilibrium position is given by F(x) = kx, for some constant k. The value of k (measured in force units per unit length) depends on the physical characteristics of the spring. The constant k is called the spring constant and is always positive. Part 1. Suppose that it takes...
Suppose a force of 40 N is required to stretch and hold a spring 0.1 m from its equilibrium position. a. Assuming the spring obeys Hooke's law, find the spring constant k. b. How much work is required to compress the spring 0.2 m from its equilibrium position? c. How much work is required to stretch the spring 0.5 m from its equilibrium position? d. How much additional work is required to stretch the spring 0.1 m if it has...
6. A force of 30 N will stretch a spring 75cm (0.75m). Assuming Hooke's law applies, how far will a 110-N force stretch the spring? How much work does it take to stretch the spring this far?
021 (part 1 of 2) 10.0 points Assume: Moving to the right is positive. A(n) 5.7 g object moving to the right at 31 cm/s makes an elastic head-on collision with a 14 g object moving in the opposite direction at 17 cm/s. 31 es17 cm/s- .-31 cm/s 5.7 g 14 g Find the velocity of the first object imme- diately after the collision Answer in units of cm/s. 022 (part 2 of 2) 10.0 points Find the velocity of...
2. Question from 1.1: Rectangular Coordinatas Use Hooke's Law for springs, which states that the distance a spring is stretched (or compressed) varies directly as the force on the spring An overhead garage door has two springs, one on each side of the door. A force of 11 pounds is required to stretch each spring 1 foot. Because of a pulley system, the springs stretch only one-half the distance the door travels. The door moves a total of 10 feet,...
part 1 &2
021 (part 1 of 2) 10.0 points pro A student sits on a rotating stool holding twoit's 2 kg objects. When his arms are extended horizontally, the objects are 0.7 m from the mot axis of rotation, and he rotates with angular ing speed of 0.66 rad/sec. The moment of inerA tia of the student plus the stool is 2 kgm and is assumed to be constant. The student then pulls the objects horizontally to a radius...
Caloulate the work required to stretch the following springs 1.5 m from their equilibrium positions. Assume Hooke's law is obeyed a. A spring that required 80 J of work to be stretched 0.2 m from its equilibrium position. b.A spring that required a force of 250 N to be stretched 0.4 m from its equibrium position a. Set up the integral that gives the work done in strotching the spring 1.5 m from its equilibrium position. Use increasing Imits of...
3) Consider Hooke's Law: The force required to keep a spring in a compressed or stretched position x units from the spring's equilibrium position is F(x)-kr Calculate the work required, in joules, to stretch a spring 0.4 meters beyond its equilibrium position for each of the following scenarios. a) The spring requires 50 Newtons of force to hold it 0.1 m from its equilibrium position. b) The spring requires 2 Joules of work to stretch the spring 0.1 meter from...
021 (part 1 of 2) 10.0 points A student sits on a rotating stool holding two 1 kg objects. When his arms are extended horizontally, the objects are 1 m from the axis of rotation, and he rotates with angular speed of 0.79 rad/sec. The moment of inertia of the student plus the stool is 4 kgm2 and is as- sumed to be constant. The student then pulls the objects horizontally to a radius 0.36 m from the rotation axis...
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