Homework Answers
Add Answer to:
6 10. Each of the four 1 kg masses shown has rotational inertia 1oo kg m2...
Rotational Inertia for Point Masses (theoretical valuel Part II: Rotational Inertia of Both Point Masses -...
Rotational Inertia for Point Masses (theoretical valuel Part II: Rotational Inertia of Both Point Masses - Experimental Use equations (2) through (5) to derive an equation for I, the rotational inertia, in terms of m, 1,8, and a. Where m now represents the mass of the hanging mass. Box 2 center of rotation, the total rotational inertia will be MR2 where Mota = M, + M2, the total mass of both point masses. To find the rotational inertia experimentally, a...
10. The angular momentum of a flywheel having a rotational inertia of 0.140 kg m2 about...
10. The angular momentum of a flywheel having a rotational inertia of 0.140 kg m2 about its central axis decreases from 3.00 to 0.800 kg m'/s in 1.50 s. (a) What is the magnitude of the average torque acting on the flywheel about its central axis during this period? (b) Assuming a constant angular acceleration, through what angle does the flywheel turn? (c) How much work is done on the wheel? (d) What is the average power of the flywheel?...
A sanding disk with rotational inertia 5.8 x 10 kg m2 is attached to an electric...
A sanding disk with rotational inertia 5.8 x 10 kg m2 is attached to an electric drill whose motor delivers a torque of magnitude 20 N-m about the central axis of the disk. About that axis and with torque applied for 42 ms, what is the magnitude of the (a) angular momentum and (b) angular velocity of the disk? (a) Number Unii (b) Number Units
Four identical particles, each 1.4 kg, are arranged in the x-y plane as shown. They are...
Four identical particles, each 1.4 kg, are arranged in the x-y plane as shown. They are connected by light rods to form a rigid body. If the distance from the center of the object to each particle is 0.8 m, what is the rotational inertia (in kg-m2) of this array about the y-axis? Round your answer to the nearest tenth.
The rotational system below has an inertia I = 50 kg m2 and a viscous damping...
The rotational system below has an inertia I = 50 kg m2 and a viscous damping con- stant c 10N -m s/rad. The torque T(t) is applied by an electric motor. From a free body diagram, the equation of motion can be shown to be dw 50 +10w= T(t) dt If the electrical system's inductance L tion for the field current 0.001 H and the resistance R = 5 , the equa- is is dis +5iy = v(t) 0.001 dt...
Question 11 A hollow sphere of radius 0.220 m, with rotational inertia I = 0.0728 kg-m2...
Question 11 A hollow sphere of radius 0.220 m, with rotational inertia I = 0.0728 kg-m2 about a line through its center of mass, rolls without slipping up a surface inclined at 33.7° to the horizontal. At a certain initial position, the sphere's total kinetic energy is 36.0 J. (a) How much of this initial kinetic energy is rotational? (b) What is the speed of the center of mass of the sphere at the initial position? When the sphere has...
Four particles with masses 4 kg, 6 kg, 4 kg, and 6 kg are connected by rigid rods of negligible mass as shown.
011. Four particles with masses 4 kg, 6 kg, 4 kg, and 6 kg are connected by rigid rods of negligible mass as shown. The origin is centered on the mass in the lower left corner. The rectangle is 6 m wide and 5 m long. If the system rotates in the xy plane about the z axis (origin, O) with an angular speed of 5 rad/s, calculate the moment of inertia of the system about the z axis. 012. Find the...
8. In the figure, four point masses, mi-8.0 kg, m2 2.0 kg, m-4.0kg, and m as...
8. In the figure, four point masses, mi-8.0 kg, m2 2.0 kg, m-4.0kg, and m as shown. The r and y coordinates of the center of mass are closest to 5.0kg, are placed A) (2.2 m, 2.6 m). B) (2.2 m, 2.7 m). C) (2.3 m, 3.1 m). D) (2.2 m, 2.8 m). E) (2.3 m, 2.9 m). 30m 20 m amig 5.0kp 10 2okg 20m
[33] A Merry-Go-Round (thin solid disk of mass M-2000 kg and rotational inertia ofla k-1 MR2)is...
[33] A Merry-Go-Round (thin solid disk of mass M-2000 kg and rotational inertia ofla k-1 MR2)is rotating freely, without friction, at 46 rpm. Three people step on the very edge of the Merry-Go-Round (Gi.e. at a distance R from the center), each with a mass of m 80.0 kg (treat them as point particles). Determine the new angular speed of the Merry-Go-Round in rad/s. b. a. How many revolutions does it turn in 2.0 min, after the people get on?...
The pulley shown (Figure 1) has a moment of inertia IA = 0.625 kg⋅m2 , a...
The pulley shown (Figure 1) has a moment of inertia IA = 0.625
kg⋅m2 , a radius r = 0.250 m , and a mass of 20.0 kg. A cylinder is
attached to a cord that is wrapped around the pulley. Neglecting
bearing friction and the cord’s mass, express the pulley’s final
angular velocity in terms of the magnitude of the cord’s tension, T
(measured in N), 4.00 s after the system is released from rest. Use
the principle of...
Rotational Inertia for Point Masses (theoretical valuel Part II: Rotational Inertia of Both Point Masses - Experimental Use equations (2) through (5) to derive an equation for I, the rotational inertia, in terms of m, 1,8, and a. Where m now represents the mass of the hanging mass. Box 2 center of rotation, the total rotational inertia will be MR2 where Mota = M, + M2, the total mass of both point masses. To find the rotational inertia experimentally, a...
10. The angular momentum of a flywheel having a rotational inertia of 0.140 kg m2 about its central axis decreases from 3.00 to 0.800 kg m'/s in 1.50 s. (a) What is the magnitude of the average torque acting on the flywheel about its central axis during this period? (b) Assuming a constant angular acceleration, through what angle does the flywheel turn? (c) How much work is done on the wheel? (d) What is the average power of the flywheel?...
A sanding disk with rotational inertia 5.8 x 10 kg m2 is attached to an electric drill whose motor delivers a torque of magnitude 20 N-m about the central axis of the disk. About that axis and with torque applied for 42 ms, what is the magnitude of the (a) angular momentum and (b) angular velocity of the disk? (a) Number Unii (b) Number Units
The rotational system below has an inertia I = 50 kg m2 and a viscous damping con- stant c 10N -m s/rad. The torque T(t) is applied by an electric motor. From a free body diagram, the equation of motion can be shown to be dw 50 +10w= T(t) dt If the electrical system's inductance L tion for the field current 0.001 H and the resistance R = 5 , the equa- is is dis +5iy = v(t) 0.001 dt...
Question 11 A hollow sphere of radius 0.220 m, with rotational inertia I = 0.0728 kg-m2 about a line through its center of mass, rolls without slipping up a surface inclined at 33.7° to the horizontal. At a certain initial position, the sphere's total kinetic energy is 36.0 J. (a) How much of this initial kinetic energy is rotational? (b) What is the speed of the center of mass of the sphere at the initial position? When the sphere has...
8. In the figure, four point masses, mi-8.0 kg, m2 2.0 kg, m-4.0kg, and m as shown. The r and y coordinates of the center of mass are closest to 5.0kg, are placed A) (2.2 m, 2.6 m). B) (2.2 m, 2.7 m). C) (2.3 m, 3.1 m). D) (2.2 m, 2.8 m). E) (2.3 m, 2.9 m). 30m 20 m amig 5.0kp 10 2okg 20m
[33] A Merry-Go-Round (thin solid disk of mass M-2000 kg and rotational inertia ofla k-1 MR2)is rotating freely, without friction, at 46 rpm. Three people step on the very edge of the Merry-Go-Round (Gi.e. at a distance R from the center), each with a mass of m 80.0 kg (treat them as point particles). Determine the new angular speed of the Merry-Go-Round in rad/s. b. a. How many revolutions does it turn in 2.0 min, after the people get on?...
The pulley shown (Figure 1) has a moment of inertia IA = 0.625
kg⋅m2 , a radius r = 0.250 m , and a mass of 20.0 kg. A cylinder is
attached to a cord that is wrapped around the pulley. Neglecting
bearing friction and the cord’s mass, express the pulley’s final
angular velocity in terms of the magnitude of the cord’s tension, T
(measured in N), 4.00 s after the system is released from rest. Use
the principle of...
Most questions answered within 3 hours.
-
The labor force minus the number of employed equals the number
of unemployed.
a. True
b....
asked 2 hours ago -
Determine the mass in units of grams [g] of 0.49 moles [mol]
of a new fictitious...
asked 2 hours ago -
A horizontal mass of M=5kg is on a spring and stretched to
x=0.5m when released from...
asked 3 hours ago -
26 of 50
"I have worked at the Arizona Humane Society for ten years, and
have...
asked 4 hours ago -
Compare and contrast zero based budgeting and incremental (or
base year) budgeting.
asked 3 hours ago -
4 pts 10. Which of the following hypothesis would be MOST
difficult to test experimentally? Group...
asked 4 hours ago -
A business owner makes 1,000 items a day. Each day he or she
contributes eight hours...
asked 4 hours ago -
A
circular loop in the plane of a paper lies inca0.65 T magnetic
field pointing into...
asked 4 hours ago -
A business owner is trying to decide whether to buy, rent, or
lease office space and...
asked 4 hours ago -
Thermal Storage Solar heating of a house is much more efficient
if there is a way...
asked 4 hours ago -
Considering the “fits” for group and job design dimensions,
suppose you had 12 employees with different...
asked 4 hours ago -
Consider TCP connection management.
How many segments are typically involved in the TCP connection
establishment? What...
asked 4 hours ago