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a 20-kg object is attached to one end of a horizontal spring that has a negligible mass and a spring constant of 250 nm
an 87 g piece of metal is heated to 98acircdegc and located into 200 ml of water insulated at 20acircdegc if the
a car is moving south with an absolute velocity of 40 kmh an observer at o is stationed 50 m to the east of the line of
a 60 muc negative charge is attracted to a large well-anchored positive charge find how much kinetic energy does
two 10-g beads are charged equally and placed 50 cm apart when released they begin to accelerate at 150 ms2 what is the
two long straight current-carrying wires run parallel to each other the current in one of the wires is 48 amp their
a hockey puck leaves a players stick with a speed of 830ms and slides 250m before coming to rest discover the
a solenoid has a radius rs 3 centimeter length l 285 centimeter and ns 125 turns the current in the solenoid goes
a 89-kg child sits in a 35-kg high chair1 complete the childs free-body diagram by adding the forces that act on the
compute the magnitude of an electric field that balances the weight of a plastic sphere of mass 9 gram that has been
a block of mass m1 327 kg on a frictionless plane inclined at angle 312deg is connected by a cord over a mass less
light photon of frequency 4 x 1015 hertz is allowed to fall on a metal surface if the maximum kinetic energy gained by
compute the capacitance of a planet assuming it is a spherical capacitor of radius r 80500 km with charge distributed
you are riding in a boat whose speed relative to the water is 49 meter per second the boat points at an angle of 265
a capacitor is formed from a hollow copper sphere of outer radius 454 cm and inner radius 363 cm compute the
a 18800 kg helicopter lifts a 4700 kg truck with an upward acceleration of 15 ms2 compute a the net upward force on the
you have designed a rocket to be used to sample the local atmosphere for pollution it is fired vertically with a
a 017 kg hockey puck has a velocity of 17 ms toward the east the x direction as it slides over the frictionless surface
a small circular loop of wire of radius 5 centimeter and resistance r 17 x 10-3 ohm is centered inside a large
to focus a camera on objects at different distances the converging lens is moved toward or away from the film therefore
a 49 kg woman is ice-skating toward the east on a frictionless frozen lake when she collides with a 95 kg man who is
a 102 ohms resistor is joined in parallel with a 24 ohm resistor determine what is the equivalent
the tension at which a fishing line snaps is commonly called the lines ldquostrengthrdquo what minimum strength is
a piece of a wire with the cross-sectional area of 05176 mm2 and 180 meter long has the resistance 922 x 10-2 ohms
a piece of nichrome wire passes a current of 0933 amp when a potential of 164 vo is applied evaluate what is the