A solid sphere of mass 1.40 kg and radius 1.5 meters is rotating about its center at a rate of 10 rad/s. What is the magnitude of the torque that must be applied to bring it to rest in 10 seconds? Report your answer to the nearest 1 N*m.
A solid sphere of mass 1.40 kg and radius 1.5 meters is rotating about its center...
A disk with radius 0.6 meters and mass 31 kg is spinning about its own center with an angular velocity of 88ed A solid sphere (/ mR2) with a radius of 0.18 meters which is spinning with an angular velocity of -18 ed (the negative sign indicates the opposite 6. rad sec direction), is gently lowered onto the disk a sticks to the disk. The two rotate together (about their mutual center of mass) at an angular velocity of 33...
Two uniform solid spheres have the same mass, 1.65 kg, but one has a radius of 0.256 m while the other has a radius of 0.844 m. For each of the spheres, find the torque required to bring the sphere from rest to an angular velocity of 357 rad/s in 10.5 s. Each sphere rotates about an axis through its center. a)Torque on sphere with the smaller radius. b)Torque on sphere with the larger radius. c)For each sphere, what force...
A solid disk with a c of 1/2, mass of 3 kg, and radius of 1.5 meters lies on a horizontally (so the normal force and weight can be ignored). A force of 7 Newtons is applied 0.34 meters directly to the right of center in the +x direction, a force of 23 Newtons is applied 0.77 meters directly below of center in the +x direction, and a force of 7 Newtons is applied at the edge of the disk...
A hollow, thin-walled sphere of mass 11.0 kg and diameter 45.0 cm is rotating about an axle through its center. The angle (in radians) through which it turns as a function of time (in seconds) is given by 0 (t) = At? + Bt4, where A has numerical value 1.10 and B has numerical value 1.60. Part A What are the units of the constant A? For related problem-solving tips and strategies, you may want to view a Video Tutor...
A hollow sphere with moment of inertia I = 0.15 kg • m2 is rotating at 13 rad/s about an axis that passes through its center. Assuming a constant net torque is applied to the sphere, how much work is required to bring the sphere to a stop?
A solid sphere of mass M and radius R starts from rest at the top of an inclined ramp, and rolls to the bottom. The upper end of the ramp is h meters higher than the lower end. (Note: The moment of inertia for a solid sphere rotating about an axis through its center is (2/5)MR2) Draw an energy bar chart & corresponding equation for this situation Symbolically, what is the linear speed of the sphere at the bottom of the ramp...
A uniform solid sphere of radius r=0.490 m and mass m=14.5 kg turns clockwise about a vertical axis through its center (when viewed from above), at an angular speed of 3.20 rad / s. What is its vector angular momentum about this axis?(Enter the magnitude in kg · m² / s.)
A wheel of mass 20 kg and radius 1.5 m is rotating counterclockwise about a shaft at 10 rad/s. A second wheel of radius 2.0 m and mass 10 kg is suddenly coupled to the first wheel. (Moment of inertial for the wheel I = mr?). If the second wheel rotates at 12 rad/s in the opposite direction as the first wheel, find the angular speed of the wheel combination.
A hollow, thin-walled sphere of mass 12.0 kg and diameter 0.50 m is rotating about an axle through its center. The angle (in radians) through which it turns as a function of time (in seconds) is given by f(t) = At 2 + Bt 4, where the magnitude of A =1.50 and B has numerical value 1.10. (a) What are the units of the constants A and B? (b) for time t=4s find (i) the angular momentum of the sphere...
Question 7 8 pts A disk is rotating at 21 rad/s counter-clockwise about its center and a constant angular acceleration of 4 rad/s? is applied to it clockwise. After 0.69 seconds, what is its rotational kinetic energy about its center if c 1/2, the mass of the disk is 4 kg, and its radius is 0.74 meters? Answer in Joules.