a cockroach with a mass of 0.050 kg stands on a rotating record player 25.0 cm...
a cockroach with a mass of 0.050 kg stands on a rotating record player 25.0 cm away from the center. The record player is flat and turns at 33.0 rpm.
A. First, find the centripetal acceleration of the cockroach.
B. Use FBD to calculate Us between the cockroach and the record surface
Homework Answers
Add Answer to:
a cockroach with a mass of 0.050 kg stands on a rotating record
player 25.0 cm...
2. A short metal cylinder of radius 24.0 cm, height 5.5 cm, and mass 4.25 kg...
2. A short metal cylinder of radius 24.0 cm, height 5.5 cm, and mass 4.25 kg is positioned on a flat surface with a frictionless pivot point at its center. A string is fixed to the outside of the cylinder and wrapped around several turns before leaving the cylinder and running parallel to the surface to a pulley which supports a hanging mass of 1.40 kg. The system is released from rest at time t0 (25) Calculate the angular acceleration...
The turntable of a record player can be modeled as a solid disk with a mass...
The turntable of a record player can be modeled as a solid disk with a mass of 1.86 kg and a diameter of 26 cm. It spins on frictionless bearings at an angular velocity of 33.8 rpm. Find the moment of inertia for the turntable. Find the tangential speed of a point on the rim of the turntable . While the turntable is spinning at full speed, a record is placed on top of it. The record has a moment...
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 uniform, 8.40-kg, spherical shell 52.0 cm in diameter has four small masses of mass 2.20-kg...
A uniform, 8.40-kg, spherical shell 52.0 cm in diameter has four small masses of mass 2.20-kg attached to its outer surface and equally spaced around it. This combination is spinning about an axis running through the center of the sphere and two of the small masses What friction torque is needed to reduce its angular speed from 80.0 rpm to 45.0 rpm in a time interval of 33.0 s ?
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 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 translating and rotating ring of mass 1 kg, angular speed of 500 rpm, and translational...
A translating and rotating ring of mass 1 kg, angular speed of 500 rpm, and translational speed of 1 m/s is placed on a horizontal surface. The coefficient of friction between the ring and the surface is 0.35. For an outside radius of 3 cm, the time at which skidding stops and rolling begins is most nearly
A person of mass 55 kg stands at the center of a rotating merry-go-round platform of...
A person of mass 55 kg stands at the center of a rotating merry-go-round platform of radius 3.4 m and moment of inertia 670 kg · m2. The platform rotates without friction with angular velocity 2.0 rad/s. The person walks radially to the edge of the platform. (a) Calculate the angular velocity when the person reaches the edge. ......................... rad/s (b) Calculate the rotational kinetic energy of the system of platform plus person before the person's walk. ..........................J (c) Calculate...
5. Ilan, of mass 75 kg, stands at the center of a rotating merry-go-round platform of...
5. Ilan, of mass 75 kg, stands at the center of a rotating merry-go-round platform of radius 3.0 m and moment of inertia 820 kg · m². The platform rotates without friction with angular velocity 0.95 rad/s. He walks radially to the edge of the platform. (a) Calculate the angular velocity when Ilan reaches the edge. (b) Calculate the rotational kinetic energy of the system of platform plus person before and after the he makes his walk. (c) While Ilan...
A person of mass 80 kg stands at the center of a rotating merry-go-round platform of radius 3.5 m and moment of inertia...
A person of mass 80 kg stands at the center of a rotating merry-go-round platform of radius 3.5 m and moment of inertia 950 kg*m^2 . The platform rotates without friction with angular velocity 0.85 rad/s . The person walks radially to the edge of the platform. 1.Calculate the angular velocity when the person reaches the edge. w=______________ rad/s 2.Calculate the rotational kinetic energy of the system of platform plus person before the person's walk. Ki=____________ J 3.Calculate the rotational...
2. A short metal cylinder of radius 24.0 cm, height 5.5 cm, and mass 4.25 kg is positioned on a flat surface with a frictionless pivot point at its center. A string is fixed to the outside of the cylinder and wrapped around several turns before leaving the cylinder and running parallel to the surface to a pulley which supports a hanging mass of 1.40 kg. The system is released from rest at time t0 (25) Calculate the angular acceleration...
A translating and rotating ring of mass 1 kg, angular speed of 500 rpm, and translational speed of 1 m/s is placed on a horizontal surface. The coefficient of friction between the ring and the surface is 0.35. For an outside radius of 3 cm, the time at which skidding stops and rolling begins is most nearly
5. Ilan, of mass 75 kg, stands at the center of a rotating merry-go-round platform of radius 3.0 m and moment of inertia 820 kg · m². The platform rotates without friction with angular velocity 0.95 rad/s. He walks radially to the edge of the platform. (a) Calculate the angular velocity when Ilan reaches the edge. (b) Calculate the rotational kinetic energy of the system of platform plus person before and after the he makes his walk. (c) While Ilan...
Most questions answered within 3 hours.
-
3) What are the typical social structures in a global city?
asked 1 hour ago -
Luther Corporation
Consolidated Balance Sheet
December 31, 2019 and 2018 (in $ millions)
Assets
2019
2018...
asked 1 hour ago -
(Expected rate of return and risk) Carter Inc. is evaluating a
security. Calculate the investment’s expected...
asked 4 hours ago -
What specific indicators can point to lack of progress for
African Americans in American society?
asked 5 hours ago -
1-The Electrons in a beam are moving at 2.7×108 m/s in an
electric field of 15000...
asked 5 hours ago -
A gas tank is a vertical cylinder. It has a radius of 1m, a
height of...
asked 5 hours ago -
Accent Software faces the following conditions. All of these
support Accent’s use of a market-penetration pricing...
asked 6 hours ago -
A mathematically inclined friend emails you the following
instructions: "Meet me in the cafeteria the first...
asked 6 hours ago -
A monopoly sells in two countries . The demand curves in the two
countries are p1...
asked 7 hours ago -
A .15kg rubber ball is bounced off a wall. Before hitting the
wall, the ball moves...
asked 8 hours ago -
A manufacturing company preparing to build a new plant is
considering three potential locations for it....
asked 8 hours ago -
B. If compound Y has approximately the same values of solubility
in toluene as compound X,...
asked 9 hours ago