Homework Answers
Add Answer to:
A 85 kg person, which tan be treated at a point maw. 11 initially located at...
A child pushes her friend (m = 25 kg) located at a radius r = 1.5...
A child pushes her friend (m = 25 kg) located at a radius r = 1.5 m on a merry-go-round (rmgr = 2.0 m, Imgr = 1000 kg*m2) with a constant force F = 90 N applied tangentially to the edge of the merry-go-round (i.e., the force is perpendicular to the radius). The merry-go-round resists spinning with a frictional force of f = 10 N acting at a radius of 1 m and a frictional torque τ = 15 N*m...
6. (25 points) The following question examines the motion of two children on a merry-go- round. You may treat the child...
6. (25 points) The following question examines the motion of two children on a merry-go- round. You may treat the children as point particles with mass m and the merry-go-round as a disk with mass M and radius R. The moment of inertia of a disk is Idisk MR2 0wn o r Ve n e r (a) Calculate the total energy of the system if the two children are at the edge of the merry- go-round and the merry-go-round is...
A person sits on a frictionless stool that is free to rotate but is initially at...
A person sits on a frictionless stool that is free to rotate but is initially at rest. The person is holding a bicycle wheel (I = 3 kg*m2) that is rotating at 8 rev/s in the clockwise direction as viewed from above, and the moment of inertia of the person-wheel-stool system is 9 kg*m2. For this problem, all answers involving a rotational component will be expressed in revolutions rather than radians. 1. What is direction of the angular momentum of...
A 70 kg merry-go-round disk has a radius of 3 meters and spins at 1.4 radians/sec...
A 70 kg merry-go-round disk has a radius of 3 meters and spins at 1.4 radians/sec with the 80 kg person on the edge. If the person moves so that they are now only 1 meter from the center, calculate the new angular speed of the merry-go-round system. Calculate the total kinetic energy of the system when the person is at the edge and when the person is at the 1 meter spot.
A person of mass 77 kg stands at the center of a rotating merry-go-round platform of...
A person of mass 77 kg stands at the center of a rotating merry-go-round platform of radius 2.8 mand moment of inertia 840 kg⋅m2 . The platform rotates without friction with angular velocity 0.95 rad/s . The person walks radially to the edge of the platform. Calculate the rotational kinetic energy of the system of platform plus person before and after the person's walk.
A person of mass 70 kg stands at the center of a rotating merry-go-round platform of...
A person of mass 70 kg stands at the center of a rotating merry-go-round platform of radius 3.4 m and moment of inertia 940 kg⋅m2 . The platform rotates without friction with angular velocity 1.6 rad/s . The person walks radially to the edge of the platform. Calculate the angular velocity when the person reaches the edge. In rad/sec Calculate the rotational kinetic energy of the system of platform plus person before and after the person's walk. In J.
A person of mass 80 kg stands at the center of a rotating merry go round...
A person of mass 80 kg stands at the center of a rotating merry go round platform of radius 2.8m and moment of inertia 870kg ×m^2. the platform rotates without friction with angular velocity .95 rad/s. the person walks radially to the edge of the platform. calculate the rotational kinetic energy of the system of platform plus person before and after the persons walk
A boy of mass 35.2 kg is standing on the edge of a merry-go-round which is at rest.
A boy of mass 35.2 kg is standing on the edge of a merry-go-round which is at rest. The merry-go-round is a flat disk of mass 59.3 kg and radius 2.3m (the moment of inertia of a cylinder is ½ mr^2 ), turning on a frictionless pivot. The boy starts to walk around the edge of the merry-go-round in the clock-wise direction (when viewed from the top). When the boy is moving at 2.4 m/s relative to the merry-go-round: a....
4. Cons ider the case of a rotating merry-go-round platform of mass of 310 kg and...
4. Cons ider the case of a rotating merry-go-round platform of mass of 310 kg and radius 3.40 m. A person of mass 85 kg is standing on the outer edge of the merry-go-round platform. The merry-go- round platform with the person standing on its edge, rotates without friction about its central vertical axle with an angular speed of 2.30 rad/s. The person then jumps off the merry-go-round along a line radially outward from the central axle of the platform....
Problem 3: A merry-go-round can be considered a uniform disk of mass 145 kg and radius...
Problem 3: A merry-go-round can be considered a uniform disk of mass 145 kg and radius 2.10 m free to rotate about a frictionless axis through its center. A 40.0 kg child stands at the edge and the system is initially rotating at 0.300 rad/sec. The child begins to walk around the edge of the merry-go-round with a velocity of 0.250 m/s relative to the ground in the direction of the rotation. What is the angular velocity of the merry-go-round...
6. (25 points) The following question examines the motion of two children on a merry-go- round. You may treat the children as point particles with mass m and the merry-go-round as a disk with mass M and radius R. The moment of inertia of a disk is Idisk MR2 0wn o r Ve n e r (a) Calculate the total energy of the system if the two children are at the edge of the merry- go-round and the merry-go-round is...
A 70 kg merry-go-round disk has a radius of 3 meters and spins at 1.4 radians/sec with the 80 kg person on the edge. If the person moves so that they are now only 1 meter from the center, calculate the new angular speed of the merry-go-round system. Calculate the total kinetic energy of the system when the person is at the edge and when the person is at the 1 meter spot.
4. Cons ider the case of a rotating merry-go-round platform of mass of 310 kg and radius 3.40 m. A person of mass 85 kg is standing on the outer edge of the merry-go-round platform. The merry-go- round platform with the person standing on its edge, rotates without friction about its central vertical axle with an angular speed of 2.30 rad/s. The person then jumps off the merry-go-round along a line radially outward from the central axle of the platform....
Problem 3: A merry-go-round can be considered a uniform disk of mass 145 kg and radius 2.10 m free to rotate about a frictionless axis through its center. A 40.0 kg child stands at the edge and the system is initially rotating at 0.300 rad/sec. The child begins to walk around the edge of the merry-go-round with a velocity of 0.250 m/s relative to the ground in the direction of the rotation. What is the angular velocity of the merry-go-round...
Most questions answered within 3 hours.
-
(a) If an electron makes a transition from the n = 6 Bohr orbit
to the...
asked 1 minute ago -
Give a quark composition of a particle with zero total angular
momentum, positive parity and negative...
asked 7 minutes ago -
Statistical Mechanics:
Explain the purpose of a partition function in a way that a
general chemistry...
asked 7 minutes ago -
A school librarian is investigating whether children from lower
socioeconomic neighborhoods sign out a different number...
asked 14 minutes ago -
A delivery person carries a stack of three boxes labeled 1, 2,
and 3, with box...
asked 23 minutes ago -
Write a recursive function called sumover
that has one argument n, which is an
unsigned integer....
asked 24 minutes ago -
1. What is the IP of scanme.nmap.org?
2. If you found a computer that is up...
asked 41 minutes ago -
A preferred stock investment will pay you an annual $9 dividend
on the same day each...
asked 58 minutes ago -
Suppose Brittany has the following demand curve for oranges:
Q = 90 − 3P
If oranges...
asked 58 minutes ago -
Santa Cruz Bottling is a manufacturer of organic soft drinks on
the coast of central California....
asked 56 minutes ago -
31.
a.
Concrete tactics that will reduce risk for a business are
considered a key component...
asked 1 hour ago -
Nitrogen is compressed in an axial-flow compressor at steady
state from a pressure of 15 lbf/in^2...
asked 1 hour ago