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1. Two balls, one larger than theother, roll without slipping across a horizontal floor with thesame center of mass velocity. The ball with the larger radius hasthe larger magnitude of angular velocity about an axis through its center of mass.
TrueFalse2. The net torque on an object instatic equilibrium must be zero about any axis.TrueFalse3. The relationshipt =Ia relating the torqueand angular acceleration about the center of mass of an object isnot valid whenever the center of mass is accelerating.TrueFalse4. If the net force on a system iszero, then the system must be in static equilibrium.TrueFalse5. A rotating object must beexperiencing a net torque about the rotation axis.TrueFalse6. If there is a net torque on asystem there must be a net force on the system.TrueFalse
Two tuning forks oscillating coherently and in phase at 12000Hz are separated by 0.35m. Calculate the angles of minimum intensity
what is the index of refraction of the jelly? 2 glass plates are parallel and between is jelly 0.015mm thick. the glass has an index of refraction 1.53, the plates are each 8.00 cm long, 10 dark fringes are 6.33mm apart. wave length is 525nm .
An object is accelerated by a force. If the acceleration increases by a factor 2 and the mass increases by a factor 4, by what factor was the force increased
0.100kg stone rests on a frictionless, horizontal surface. A bullet of mass 9.00g , find the magnitude of Daniel's velocity after the collision
A 2120 kg car moving east at 10.7 m/s collides with a 3240 kg car moving east. The cars stick together and move east as a unit after the collision at a velocity of 6.48 m/s.
The filament of a 127 W (116 V) lightbulb is a tungsten wire 0.05 mm in diameter. How long is the filament
the two conducting rails in the drawing are tilted upward so they each make an angle of 30.0deg with respect to the
At what angle must the projectile be fired to hit a target positoned at a range 10km away if the initial speed of the projectile is 500ms
It costs 2.5 cents to charge a car battery at a voltage of 12 V and a current of 13 A for 120 minutes. What is the cost of electrical energy per kilowatt-hour
A size-5 soccer ball of diameter 22.6cm and mass 426g rolls up a hill without slipping, reaching a maximum height of 6.50m above the base of the hill. At what rate was it rotating at the base of the hill
what will a spring scale read for the weight of a 58 kg woman in an elevator that moves as follows?a upward with
A conductor carrying a current I = 14.7 A is directed along the positive x axis and perpendicular to a uniform magnetic field. A magnetic force per unit length of 0.131 N/m acts on the conductor in the negative y direction. (a) Determine the magnitud..
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