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in this problem i and j refer to unit vectors in the x and y directions respectively a small particle whose mass is
in the diagram below an external force is applied to a mass of 860 kg which is at rest the coefficient of static
a long cylindrical conductor of radius r carries a current i as shown in the figure below the current density j however
three changes are located along the x axis as shown in the drawing the mass of the -12 muc is 15 times 10-9 kg
ann sam and you have a hula hoop that is 102 m in diameter and has a mass mh 20 kg you see both sam and ann motionless
for the circuit below the emf has an rms voltage of 120 vat a frequency f 60 hz the resistor is 20 ohm the capacitor
a 300-kg block rests on the left edge of a 900-kg slab as the figure friction is present between the two masses and the
a rectangular loop a 014 m b 040 m is pushed into a space where there is uniform magnetic field with a speed of 460
the angular speed of a rotating platform changes from omega0 5 rads to omega 84 rads at a constant rate as the
a 9kg object is suspended from the ceiling by a strong spring which then undergoes simple harmonic motion with a period
a spring is mounted to a vertical wall such that an object attached to the end of the spring is free to slide on a very
the store has a fire alarm which detects an increase in temperature the fire alarm circuit has a resistor r a
1 you are given four identical metal spheres with the following charges 4q 3q 1q -4q each sphere can be placed in any
the angle theta through which a disk drive turns is given by thetatabt-ct3 where ab and care constants t is in seconds
a if a capacitor has been left in a steady circuit for a long time what can you say about the current going through itb
a in the figure below what is the direction of the flux experienced by the loop of coilb if the current i is increasing
in this problem you will determine whether the magnetic field in the sun might affect the loss of angular momentum from
a 350 g ball is attached to a vertical spring the spring constant is 41 when released from rest how far does the ball
you push tangentially across the top surface of jell-o with a force of 037 n the top surface moves a distance of 105 mm
leah and arif now do a practice problemsuppose you are in a partially darkened room holding a flat piece of white
a circular loop has radius r and carries current i2 in a clockwise direction see figure the center of the loop is a
the long straight wire ab shown in the following figure carries a current of i1 100 a the rectangular loop whose long
two parallel wires are 485 cm apart and carry currents in opposite directions as shown in the following figure find the
consider the loop in the figure below what is the maximum induced emf in each of the following cases if a 600 cm2
there are 1050 grams of water in a container that has insulating sides and a heat-conducting base the container is