Physical Science Survey
How much potential energy is gained by a 5kg sack of potatoes when the grocer lifts the sack 2.5 meters to the top shelf of the vegetable section of the store?(Remember that to move the 5g sack a 5-N force needs to be exerted on the sack)
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6. An air-track glider is connected to an ideal spring and can oscillate back and forth on the fr...
6. An air-track glider is connected to an ideal spring and can oscillate back and forth on the frictionless surface of the track. The potential energy function of the spring/glider system is U(x) 2.024.0 1.0 in Joules. Here represents the position of the center of the glider in meters. The graph of this function is provided. The y-axis is in Joules and the x- axis is in meters. a. What is the a-coordinate of the center of the glider when...
attraction if the distance between these two masses is halved? Energy and Oscillations 4 A force...
attraction if the distance between these two masses is halved? Energy and Oscillations 4 A force of 8O N used to push a table across a room does 800 J of wok. How far the chair move in this process? S. A net force of 60 N accelerates a 5.0 kg mass over a distance of 10 m. What is the work done by this net force? a. b. What is the increase in kinetic energy of the mass? 6-...
ROLLER COASTER PROBLEMS NET Force TO THE CENTEZ EF A 50 kg person rides each of...
ROLLER COASTER PROBLEMS NET Force TO THE CENTEZ EF A 50 kg person rides each of the looping coasters shown. For each position indicated find the rider's total energy, potential energy, kinetic energy and speed. Find the centripetal force needed to make the rider move along the arc of the coaster at the position shown. Calculate the force the seat must exert to keep the rider in the desired motion as well as the force factor the rider experiences. Remember...
1a. 1b. 1c. A single conservative force = (AX - B) N, where x is in...
1a.
1b. 1c.
A single conservative force = (AX - B) N, where x is in meters, and A and B are positive constants, acts on a particle moving along an x axis. The potential energy U associated with this force is assigned a value of 0 at x = 0. (a) Write an expression for the potential energy associated with this force. (b) What is the maximum positive value of the potential energy? In the figure, a block of...
PHY 3460 Hooke's Law and Elastic Potential Energy Questions When applying a 37.5 N force on...
PHY 3460 Hooke's Law and Elastic Potential Energy Questions When applying a 37.5 N force on a spring it compresses 15.0 cm. Calculate the spring 2) A spring (k 1.22 N/m) is hanging vertically. An unknown mass is hung from the spring 3) A 15.0 kg mass is hung from a spring causing it to stretch 0.25 m, find the spring constant. constant of the spring. causing it to stretch 57.3 mm. How large is the unknown mass? Then, another...
Please explain steps for part d. I cannot figure it out A box, with a weight...
Please explain steps for part d. I cannot figure it out A box, with a weight of mg = 25 N, is placed at the top of a ramp and released from rest. The ramp measures 4.20 meters horizontally and 3.30 meters vertically. The box accelerates down the incline, attaining a kinetic energy at the bottom of the ramp of 48.0 J. There is a force of kinetic friction acting on the box as it slides down the incline. a)...
1. A 185 g cart is given a quick push up a frictionless incline, giving it...
1. A 185 g cart is given a quick push up a frictionless incline, giving it an initial velocity of 1.45 m/s. The incline is at an angle of 10.0 to the horizontal. You must show your work to get full credit for this problem. a) What is the cart's initial kinetic energy, i.e. when it leaves the launcher? KE =mv eay @ztty =C85k9)(145s) = .1343 b) What is the cart's change in kinetic energy (Kr-Ko) from the launch point...
A track consists of a frictionless incline plane, which is a height of 0.5 m, and...
A track consists of a frictionless incline plane, which is a height of 0.5 m, and a rough horizontal section with a coefficient of kinetic friction 0.02. Block A, whose mass is1.5 kg, is released from the top of the incline plane, slides down and collides instantaneously and inelastically with iden tical block B at the lowest point. The two blocks move to the right through the rough section of the track until they stop. Determine the initial potential energy...
For this problem, use the system of the spring-Earth-block system, but do not include the wall...
For this problem, use the system of the spring-Earth-block system, but do not include the wall or track in your system A spring (spring constant k) is near the bottom of a frictionless loop-the-loop (radius R). The left end of the spring is secured to an immovable wall. The right end ofthe spring is used to launch a block (mass m) around the loop-the-loop 1. Explain why the track does no work on the block, even though it exerts a...
A 2 x 10^-3 kg bullet (m) is shot into a 5 kg block (M) of...
A 2 x 10^-3 kg bullet (m) is shot into a 5 kg block (M) of wood which is fixed to a friction less horizontal surface. The bullet hits the block at v = 500m/s 1) Calculate the magnitude of the momentum of the bullet as it hits the block. 2) The bullet embeds itself in the block. How much work is done by the resistive force due to the block in bringing the bullet to rest? 3) The average...
6. An air-track glider is connected to an ideal spring and can oscillate back and forth on the frictionless surface of the track. The potential energy function of the spring/glider system is U(x) 2.024.0 1.0 in Joules. Here represents the position of the center of the glider in meters. The graph of this function is provided. The y-axis is in Joules and the x- axis is in meters. a. What is the a-coordinate of the center of the glider when...
attraction if the distance between these two masses is halved? Energy and Oscillations 4 A force of 8O N used to push a table across a room does 800 J of wok. How far the chair move in this process? S. A net force of 60 N accelerates a 5.0 kg mass over a distance of 10 m. What is the work done by this net force? a. b. What is the increase in kinetic energy of the mass? 6-...
ROLLER COASTER PROBLEMS NET Force TO THE CENTEZ EF A 50 kg person rides each of the looping coasters shown. For each position indicated find the rider's total energy, potential energy, kinetic energy and speed. Find the centripetal force needed to make the rider move along the arc of the coaster at the position shown. Calculate the force the seat must exert to keep the rider in the desired motion as well as the force factor the rider experiences. Remember...
1a.
1b. 1c.
A single conservative force = (AX - B) N, where x is in meters, and A and B are positive constants, acts on a particle moving along an x axis. The potential energy U associated with this force is assigned a value of 0 at x = 0. (a) Write an expression for the potential energy associated with this force. (b) What is the maximum positive value of the potential energy? In the figure, a block of...
PHY 3460 Hooke's Law and Elastic Potential Energy Questions When applying a 37.5 N force on a spring it compresses 15.0 cm. Calculate the spring 2) A spring (k 1.22 N/m) is hanging vertically. An unknown mass is hung from the spring 3) A 15.0 kg mass is hung from a spring causing it to stretch 0.25 m, find the spring constant. constant of the spring. causing it to stretch 57.3 mm. How large is the unknown mass? Then, another...
1. A 185 g cart is given a quick push up a frictionless incline, giving it an initial velocity of 1.45 m/s. The incline is at an angle of 10.0 to the horizontal. You must show your work to get full credit for this problem. a) What is the cart's initial kinetic energy, i.e. when it leaves the launcher? KE =mv eay @ztty =C85k9)(145s) = .1343 b) What is the cart's change in kinetic energy (Kr-Ko) from the launch point...
For this problem, use the system of the spring-Earth-block system, but do not include the wall or track in your system A spring (spring constant k) is near the bottom of a frictionless loop-the-loop (radius R). The left end of the spring is secured to an immovable wall. The right end ofthe spring is used to launch a block (mass m) around the loop-the-loop 1. Explain why the track does no work on the block, even though it exerts a...
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