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As you are leaving a building, the door opens outward. If the hinges on the door...
The entrance door to a video store is pivoted about the hinges on the left side...
The entrance door to a video store is pivoted about the hinges on the left side of the door. When you begin to push on the right side of the door to enter the store, what is the direction of the torque on the door? O clockwise out of the store O counterclockwise O upward O into the store
A student opens a 12.0 kg door by applying a constant force of 40.0 N at...
A student opens a 12.0 kg door by applying a constant force of 40.0 N at a perpendicular distance of 0.900 m from the hinges. If the door is 2.00 m in height and 1.00 m wide, what is the magnitude of the angular acceleration of the door? (Assume that the door rotates freely on its hinges.) The moment of inertia for a door about the hinge is I = -mr2.
When you push a door closer to the hinges, why does it open more slowly? because...
When you push a door closer to the hinges, why does it open more slowly? because you are closer to the center Now choose from one of the following options Why? a) It opens slowly, because the lever arm is shorter so the torque is large b) It opens slowly because the lever am is longer so the torque is large. c It opens slowly, because the lever asi is shorter so the torque is less. Comes from 9.2 The...
in magnitude the smaller the radius of the circle in magnitude the smaller the radius of...
in magnitude the smaller the radius of the circle in magnitude the smaller the radius of the circle. sat a constant sped in a circular path, the acceleration of the ob s. Ian object trav Bin the se direction as the velocity of the object B) larger C) smaller of the velocity of the object Din she oppostie dinetion E) zero. a building,the door opens outward. If the hinges on the door are on your 6 As you are ieh...
A 0.00600 kg bullet traveling horizontally with speed 1.00 103 m/s strikes a 20.8 kg door, embedding itself 11.0 cm from the side opposite the hinges. The 1.00 m wide door is free to swing on its frictionless hinges.
A 0.00600 kg bullet traveling horizontally with speed 1.00 103 m/s strikes a 20.8 kg door, embedding itself 11.0 cm from the side opposite the hinges as shown in the figure below. The 1.00 m wide door is free to swing on its frictionless hinges.What is the angular momentum? At what angular speed (rad/s) does the door swing open immediately after the collision? Calculate the total energy of the bullet-door system and determine whether it is less than or equal...
A uniform door initially at rest has a width W = 1.5m and mass M= 20...
A uniform door initially at rest has a width W = 1.5m and mass M= 20 kg. The door is hinged on one side and can freely rotate about the hinges without friction. A policeman fires a bullet, m, = 15 g into the door at a speed v. = 500m/s. The bullet takes a horizontal path and strikes the door in a perpendicular direction at the exact center. The moment of inertia of the door about an axis passing...
A professor's office door is 0.94 m wide, 2.0 m high, 4.0 cm thick; has a...
A professor's office door is 0.94 m wide, 2.0 m high, 4.0 cm thick; has a mass of 25 kg , and pivots on frictionless hinges. A "door closer" is attached to door and the top of the door frame. When the door is open and at rest, the door closer exerts a torque of 5.1 N⋅m . If you let go of the open door, what is its angular acceleration immediately afterward? What is the moment of inertia of...
R r up Left Right Down A spinning disk is rotating at a rate of 2 rad/s in the counterclockwise d...
r r up Left Right Down A spinning disk is rotating at a rate of 2 rad/s in the counterclockwise direction as shown in the figure. What is the direction of the angular velocity vector? Incorrect right Incorrect down Correct: up Incorrect left s answer now shown above. You are correct. receipt no. is 160-4295 If the disk is speeding up at a rate of 2 rad/s2, what is the direction of the angular acceleration vector? Incorrect down Incorrect left...
The figure below shows a human arm that weighs 39.3 N. The arm is extended outward...
The figure below shows a human arm that weighs 39.3 N. The arm
is extended outward and is motionless. The gravitational force
Fg
on the arm acts at point A, a distance of 0.290 m from
the shoulder joint, which is represented by point O. The
shoulder pushes down and to the right on the humerus bone of the
arm with a force
Fs
at point O, at an angle θ as shown. The
deltoid muscle pulls back on the...
Josh's office door is 0.82 m wide, 6.0 cm thick, and 2.10 m high. The door has...
Josh's office door is 0.82 m wide, 6.0 cm thick, and 2.10 m high. The door has a mass m = 15.0 kg and pivots on frictionless hinges. A door closer is attached to the door and the top of the door frame. When the door is open and at rest, the door closer exerts a torque Γ = 4.50 N m. What is the smallest force that you need to apply to the door to hold it open? Enter your...
The entrance door to a video store is pivoted about the hinges on the left side of the door. When you begin to push on the right side of the door to enter the store, what is the direction of the torque on the door? O clockwise out of the store O counterclockwise O upward O into the store
When you push a door closer to the hinges, why does it open more slowly? because you are closer to the center Now choose from one of the following options Why? a) It opens slowly, because the lever arm is shorter so the torque is large b) It opens slowly because the lever am is longer so the torque is large. c It opens slowly, because the lever asi is shorter so the torque is less. Comes from 9.2 The...
in magnitude the smaller the radius of the circle in magnitude the smaller the radius of the circle. sat a constant sped in a circular path, the acceleration of the ob s. Ian object trav Bin the se direction as the velocity of the object B) larger C) smaller of the velocity of the object Din she oppostie dinetion E) zero. a building,the door opens outward. If the hinges on the door are on your 6 As you are ieh...
A uniform door initially at rest has a width W = 1.5m and mass M= 20 kg. The door is hinged on one side and can freely rotate about the hinges without friction. A policeman fires a bullet, m, = 15 g into the door at a speed v. = 500m/s. The bullet takes a horizontal path and strikes the door in a perpendicular direction at the exact center. The moment of inertia of the door about an axis passing...
r r up Left Right Down A spinning disk is rotating at a rate of 2 rad/s in the counterclockwise direction as shown in the figure. What is the direction of the angular velocity vector? Incorrect right Incorrect down Correct: up Incorrect left s answer now shown above. You are correct. receipt no. is 160-4295 If the disk is speeding up at a rate of 2 rad/s2, what is the direction of the angular acceleration vector? Incorrect down Incorrect left...
The figure below shows a human arm that weighs 39.3 N. The arm
is extended outward and is motionless. The gravitational force
Fg
on the arm acts at point A, a distance of 0.290 m from
the shoulder joint, which is represented by point O. The
shoulder pushes down and to the right on the humerus bone of the
arm with a force
Fs
at point O, at an angle θ as shown. The
deltoid muscle pulls back on the...
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