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a 070-kg disk with a rotational inertia given by mr22 is free torotate on a fixed horizontal axis suspended from the
at the local playground a child on a swing has a speed of 202 ms when the swing is at its lowest point a to what
a 50kg woman is in a rotor with a 2m radius laying against theinner surface the friction between the womanrsquos
a baseball catcher moves his glove away from a 360 ms fastball as he catches it if the averageforce he exerts on the
a solenoid has 137 turns of wire uniformly wrapped around anair-filled core which has a diameter of 6 mm and a length
an aluminum wire has the same resistance as acopper wire of the same length find the ratio of the aluminumwires
a hall-effect probe operates with a 120 -ma current when the probeis placed in a uniform magnetic field of magnitude
a merry-go-round rotates from rest with an angular acceleration of 150 rads2 how long does it take to rotate througha
a 12 kg block is held at rest against a spring with a forceconstant k730 nm intially the spring is compressed a
consider twosections of wires with currents as shown abovethe force on the short wire due to the long wire is toward
as a sailboat sails 530 m due north abreeze exerts a constant force f1 onthe boats sails this force is directed at an
a 12 kg block of steel is at rest on ahorizontal table the coefficient of static friction between blockand table is
a bedroom bureau with a mass of 57 kgincluding drawers and clothing rests on the floora if the coefficient of static
what is the smallest radius of an unbanked flat track around which a bicyclist can travel if her speed is 26 kmh and
suppose the coefficient of static friction between the road and the tires on a car is 060 and the car has no negative
in the figure a slab of mass m1 19kg rests on a frictionless floor and a block of massm2 12 kg rests on top of
the drawing shows two boxes resting on frictionless ramps onebox is relatively light and sits on a steep ramp the other
a photon of energy 50 mev moves along the x-axis and comptonscatters with an electron initially at rest after the
the magnetic field of the earth at acertain location is directed vertically downward and has amagnitude of 500 mut a
a singly charged positive ion has a mass of320times10ndash26 kg after being acceleratedfrom rest through a potential
a baseball thrown from the out field is released from shoulderheight at an initial velocity of 294 ms at an initial
two capacitors of capacitance 50 muf and 80 muf areconnected in series the 3rd capacitor of 10 muf isconnected in
a 54kg object is suspended by a string from the ceiling of anelevator the acceleration of gravity is 98ms2 determine
a house is painted with pigment that reflected red and bluelight but absorb all the colorswhat color does the house
a particle moves with constant velocity 4 -2 1 ms if its mass is 3 kg what is its kinetic energy one of the forces