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WH3 Weekly Homework#3 Part B a. Compute velocity, acceleration and force acting on a 2.0-Kg mass...
4. In this experiment students measure the force (F) holding a 2.0 kg mass on rotating...
4. In this experiment students measure the force (F) holding a 2.0 kg mass on rotating platfornm of radius r when the mass is traveling at different velocities (v). The centripetal force acting on an object of mass m can be expressed as mv E N 2.0 v (m/s) 0.46 0.55 0.61 0.70 0.78 4.0 5.0 6.0 Plot a graph for this data and find the radius from your linear fit equation assuming that m 2.0 kg. Note: 1 N...
2. A block of mass 3.0 kg rests on an inclined planw that makes an angle...
2.
A block of mass 3.0 kg rests on an inclined planw that makes an
angle with the horizontal of 25...(pic)
4. A man weighs an apple with a string scale attached to the
ceiling of an elevator...(pic)
9. A diver weighing 600 N drops from a board h meters above
the surface of the water...(pic)
10. A block with a mass of 5.0 kg is attached to a horizontal
spring with a spring constant 300 N/m...(pic)
2. A block...
Consider a ball of mass 0.110 kg being spun in a horizontal circle of radius r-0.50...
Consider a ball of mass 0.110 kg being spun in a horizontal circle of radius r-0.50 m, as shown to the right. When the ball reaches an angular velocity (o) of 2.00 rad/s, it is given a constant angular acceleration of a- 2.00 rads. You can assume that the radius of the circular path followed by the ball remains constant during this acceleration. After precisely 3.00 seconds of this angular acceleration, the ball breaks off the string (a) In what...
A toy car of mass 0.35 kg travels along a circular banked road, with banking angle...
A toy car of mass 0.35 kg travels along a circular banked road, with banking angle 30°. The circle has radius 0.80 m. Sarah wants to make the car move as fast as possible, but if it goes too fast, it slips off the road. Therefore, Sarah cuts a 0.80- meter piece of string, attaches one end to the car, and attaches the other end to a nail stuck in the center of the circle. Unfortunately, the string is thin...
1. A car with constant acceleration of 2.3 m/s2 drives toward east (positive x-axces). (a)How much...
1. A car with constant acceleration of 2.3 m/s2 drives toward east (positive x-axces). (a)How much time in seconds is required for the car to change its speed from 10 m/s to 35 m/s? (b)Calculate the total distance in meters, covered during that time (c) Calculate the average speed during that time interval (d) Find x- and y- components of the vector of acceleration 2. From the top of a tower, a person drops a pebble. The peble strikes the...
(1 point) A body of mass 10 kg moves in the xy-plane in a counterclockwise circular path of radius 3 meters centered at the origin, making one revolution every 11 seconds. At the time t 0, the b...
(1 point) A body of mass 10 kg moves in the xy-plane in a counterclockwise circular path of radius 3 meters centered at the origin, making one revolution every 11 seconds. At the time t 0, the body is at the rightmost point of the circle. A. Compute the centripetal force acting on the body at time t. B. Compute the magnitude of that force. HINT. Start with finding the angular velocity o [rad/s] of the body (the rate of...
Part B Find the time to reach the grid. Express your answer in seconds. VALO ?...
Part B Find the time to reach the grid. Express your answer in seconds. VALO ? t = s Submit Request Answer Part C Find the net force. (You can ignore the gravitational force on the electron). Express your answer in newtons. ΑΣΦ ? Fnet = N Submit Request Answer An electron of mass 9.11x10-31 kg leaves one end of a TV picture tube with zero initial speed and travels in a straight line to the accelerating grid, which is...
Two objects, A with mass mA=0.25 kg and B with mass mB=1.25 kg, are held at...
Two objects, A with mass mA=0.25 kg and B with mass mB=1.25 kg, are held at rest on a spring is released, A has a kinetic energy of 22 J and B has a kinetic energy of A) 110 J g is compressed between them. Immediately after the B) 5.5J C) 11 J D) 4.4 J E) 19.4 J 18. A certain wheel has a rotational inertia of 12 kg m2. As it turns through 5.0 rev its angular velocity...
3. A merry-go-round (uniform disk) of mass M = 125 kg and radius R = 1.5...
3. A merry-go-round (uniform disk) of mass M = 125 kg and radius R = 1.5 m is rotating initially wi = 12 rad/s. A person (we'll call the person a thin uniform rod) of mass m = 65 kg and height h= R initially stands over the rotation axis. The person decides to lie down with feet at the center and head at the outer edge (see figure). Since the person is a "thin rod', we can ignore the...
2. | 10 The block B of mass m3 = 2.5 kg is attached to a...
2. | 10 The block B of mass m3 = 2.5 kg is attached to a spring with spring constant k, and is initially at rest at point A as shown in the diagram. The block is then released and slides inside the curved slot until it collides at location C with a ball S that is hanging by a rope from a fixed location D. After the collision, block B is at rest at location C, and the ball...
4. In this experiment students measure the force (F) holding a 2.0 kg mass on rotating platfornm of radius r when the mass is traveling at different velocities (v). The centripetal force acting on an object of mass m can be expressed as mv E N 2.0 v (m/s) 0.46 0.55 0.61 0.70 0.78 4.0 5.0 6.0 Plot a graph for this data and find the radius from your linear fit equation assuming that m 2.0 kg. Note: 1 N...
2.
A block of mass 3.0 kg rests on an inclined planw that makes an
angle with the horizontal of 25...(pic)
4. A man weighs an apple with a string scale attached to the
ceiling of an elevator...(pic)
9. A diver weighing 600 N drops from a board h meters above
the surface of the water...(pic)
10. A block with a mass of 5.0 kg is attached to a horizontal
spring with a spring constant 300 N/m...(pic)
2. A block...
Consider a ball of mass 0.110 kg being spun in a horizontal circle of radius r-0.50 m, as shown to the right. When the ball reaches an angular velocity (o) of 2.00 rad/s, it is given a constant angular acceleration of a- 2.00 rads. You can assume that the radius of the circular path followed by the ball remains constant during this acceleration. After precisely 3.00 seconds of this angular acceleration, the ball breaks off the string (a) In what...
A toy car of mass 0.35 kg travels along a circular banked road, with banking angle 30°. The circle has radius 0.80 m. Sarah wants to make the car move as fast as possible, but if it goes too fast, it slips off the road. Therefore, Sarah cuts a 0.80- meter piece of string, attaches one end to the car, and attaches the other end to a nail stuck in the center of the circle. Unfortunately, the string is thin...
(1 point) A body of mass 10 kg moves in the xy-plane in a counterclockwise circular path of radius 3 meters centered at the origin, making one revolution every 11 seconds. At the time t 0, the body is at the rightmost point of the circle. A. Compute the centripetal force acting on the body at time t. B. Compute the magnitude of that force. HINT. Start with finding the angular velocity o [rad/s] of the body (the rate of...
Part B Find the time to reach the grid. Express your answer in seconds. VALO ? t = s Submit Request Answer Part C Find the net force. (You can ignore the gravitational force on the electron). Express your answer in newtons. ΑΣΦ ? Fnet = N Submit Request Answer An electron of mass 9.11x10-31 kg leaves one end of a TV picture tube with zero initial speed and travels in a straight line to the accelerating grid, which is...
Two objects, A with mass mA=0.25 kg and B with mass mB=1.25 kg, are held at rest on a spring is released, A has a kinetic energy of 22 J and B has a kinetic energy of A) 110 J g is compressed between them. Immediately after the B) 5.5J C) 11 J D) 4.4 J E) 19.4 J 18. A certain wheel has a rotational inertia of 12 kg m2. As it turns through 5.0 rev its angular velocity...
3. A merry-go-round (uniform disk) of mass M = 125 kg and radius R = 1.5 m is rotating initially wi = 12 rad/s. A person (we'll call the person a thin uniform rod) of mass m = 65 kg and height h= R initially stands over the rotation axis. The person decides to lie down with feet at the center and head at the outer edge (see figure). Since the person is a "thin rod', we can ignore the...
2. | 10 The block B of mass m3 = 2.5 kg is attached to a spring with spring constant k, and is initially at rest at point A as shown in the diagram. The block is then released and slides inside the curved slot until it collides at location C with a ball S that is hanging by a rope from a fixed location D. After the collision, block B is at rest at location C, and the ball...
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