What is the rotational kinetic energy in KILOJOULES of a spinner if it rotates at a constant speed of 7575rpm ? 3 m 5 kg 6 kg 1 m 2 m kg 4
Q: A 0.400 kg mass, sitting on a horizontal frictionless surface, is attached to the end of a 0.750 m…
A: 1) When ice-skater spins and increases her rotation rate by pulling her arms and leg in. Here her…
Q: The tangential acceleration of a point on a rotating object equals the distonce of that point trom…
A:
Q: According to the law of conservation of momentum... a total angular momentum is unchanged, it…
A: According to the Law of conservation of momentum, total angular momentum remain unchanged. So, if…
Q: A star rotates ina circular orbit about the center of its galaxy. The radius of the orbit is 6.7 x…
A: Given Data : radius r = 6.7×1020 m angular speed ω = 1.0×10-15 rad/s To Find : time taken by star…
Q: The planet Earth orbits around the Sun and also spins around its own axis. Part (a) Calculate the…
A: part (a)the expression for the angular momentum of earth around the sun is,
Q: A bicycle wheel has a radius r = 0.21 m and rotates at a constant frequency of f = 51 rev/min. r =…
A: The angular frequency, ω = 51rev/min = 5.34rad/s. The time period of rotation of the wheel is
Q: To avoid the cold in December, Ashley decides to travel to the Sydney, Australia. She decided to…
A: Explanation The earth completes a full rotation in 24 hours, irrespective of Ashley’s location. The…
Q: Earth orbits Sun... (Choose the right answer.) a Earth orbits Sun in elliptical path at slower…
A: Areal Velocity: It is a pseudo vector that is equal to the rate of change of area swept by a…
Q: What is the rotational kinetic energy of the device shown if it rotates at a constant speed of 62.8…
A:
Q: A 5 kg ball with a 0.4 meter radius is rolling on a horizontal surface at 3 m/s. The rotational…
A: This question is based on law of conservation of energy and pure rolling motion.
Q: A car travelling at 108 km/h . Given the the tires on the car have radius of 40 cm , what is their…
A: Given data: The speed of the car is V=108 km/h. The radius of the tire of the car is R=40 cm.…
Q: (a) Calculate the rotational kinetic energy of Earth on its axis. (b) What is the rotational kinetic…
A: We have to find The rotational energy of earth around it's own axis The rotational energy of earth…
Q: a 1.82 kg shoe (the red box) is pinned against the side of the washing machine during the spin…
A:
Q: What is the velocity of a point on the rim of a disk that has a moment of inertia of 0.5 kg-m2 and a…
A:
Q: How is rotational motion different from linear motion? Particles within the objects in rotational…
A: In rotational motion, linear velocity of each particle would be different. This is because different…
Q: What is the Earth's angular velocity as it spins around its rotation axis once every 23 hours, 56…
A:
Q: Suppose you are standing within the rim of a circular space station, in outer space. The rim…
A:
Q: What is the kinetic energy of a 123 cm long thin uniform rod with a mass of 458 g that is rotating…
A: The rod is rotating about its center of mass so it has only rotational kinetic energy. Kinetic…
Q: An object is traveling around a circle with a radius of 4 meters. If in 50 seconds a central angle…
A:
Q: What is the rotational kinetic energy in KILOJOULES of a spinner if it rotates at a constant speed…
A: Given three masses rotating around a vertical axis required total rotation kinetic energy
Q: A 2.1-kg solid sphere rotates about a frictionless axis through its center. A braking force of 0.19…
A: τ=IαrF=25mr2α r=5F2mα
Q: While spinning down from 95 rads/s to rest, a solid cylinder does 3.7 kJ of work. If the radius of…
A: Work done by solid cylinder is given by W=12Iω2W=12I2mr2ω2W=I4mr2ω2m=4Wr2ω2m=43.7×103 J1.2 m295×2π60…
Q: A 135-kg merry-go-round in the shape of a uniform, solid, horizontal disk, is set in motion by…
A: Torque can be expressed as, τ=Iα=Fr
Q: What is the rotational kinetic energy for 1 kilogram wheel that is rolling along a horizontal…
A:
Q: A wheel with a radius of 0.4 meters initially at rest and begins to accelerate at 4 rad/s2. How many…
A:
Q: The radius of a flywheel is 0.24 m. If the angular speed of the wheel is 3,408 rpm. Calculate the…
A: Given, the radius of flywheel , r = 0.24m The angular speed ,ω= 3408 rpm = 3408 revolution per…
Q: A star rotates in a circular orbit about the center of its galaxy. The radius of the orbit is 1.3 x…
A: ω=∆θ∆t∆t=∆θω
Q: An asteroid having a distance of 4.3 x 107 m from a planet revolves around it once every 26.7 days.…
A:
Q: A neutron star of mass 2 x 100 kg and radius 11.1 km rotates with a period of 0.02 seconds. What is…
A: The moment of inertia here (for a disk) can be given by I=25MR2 ...... (I) The…
Q: A satellite takes 1.5 x 104 s to complete one circular orbit around a planet. If the satellite has a…
A: Given, mass of satellite =m=1.5 x103 orbit radius=r=6.2 x106 m Time period for 1 revolution =T=1.5…
Q: The 18-cm-diameter disk in (Figure 1) can rotate on an axle through its center. For general…
A:
Q: An orangutan leaps off of a cliff and its body begins to rotate clockwise. If the orangutan then…
A: Solution: We are given that the orangutan leaps off a cliff and then its body begins to rotate…
Q: medical saW is rotating at a constant rate of 15 revolutions per second. If it has a radius of 12…
A: given: ω=15 rev/sr=12 cm
Q: Static Force Exerted by the Spring Time to Complete 60 Revolutions 41 sec Angular Velocity of the…
A: Given : Time to Complete 60 Revolutions = 41 s Angular Velocity of the Rotating Mass, w = 9.2 rad/s…
Q: Compute for the angular speed with the given data: -Radius= 0.6 m Number of revolution = 8 Time= 30…
A: Angular speed is calculated by the ω=2πf f=revSec
Step by step
Solved in 3 steps with 1 images
