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the velocity of a diver now before hitting the water is -89 ms where the minus sign indicates that her motion is
a physics student on planet exidor throws a ball and it follows the parabolic trajectory shown in the figure the balls
several bacteria are propelled by biological motors that spin hair-like flagella a typical bacterial motor turning at a
a person stands in a stationary canoe and throws a 520 kg stone with a velocity of 785 ms at an angle of 350 degrees
a sinusoidal voltage deltav 100 v sin 160t is applied to a series rlc circuit with l 50 mh c 100 muf and r 38
1 a long solenoid of length 8 m with a cross-sectional area of 50 x 10-5 m2 contains a total of 52000turnsa compute the
an electric field of 148 kvm and a magnetic field of 0387 t act on a moving electron to produce no net force if the
a soap film n 133 is 475 nm thick and lies on a glass plate n 152 sunlight whose wavelengths in vacuum extend from
a horizontal force of 50n pushes a 50kg block against a vertical wall the block is initially at rest if mu s 60
the image behind a convex mirror radius of curvature 72 cm is located 21 cm from the mirrora where is the object
a drop of water on a countertop reflects light from a flower held310 cm directly above it the flowers diameter is 220
a diffraction grating has60x105 linesm find the angular spread in the second-order spectrum among red light of
a uniform ladder of length l and weight w is leaning against a vertical wall the coefficient of static friction among
in a double slit experiment the separation among the slits is 015mm the distance between the slits and the screen is
a scalloped hammerhead shark swims at a steady speed of 18mswith its 83 cm-cm-wide head perpendicular to the earths52
in the circuit shown in the figure the throw of the make-before-break switch has been at contact a for a long-time and
a flat sheet of crown glass has a thickness of 33cm it is on top of a flat sheet of crystalline quartz that has a
a drop of water on a countertop reflects light from a flower held 30cm directly above it the flowers diameter is 20cm
an object of mass 25 kg is moving in the negative x direction at a velocity of 20 ms it experiences a force of 4 n for
a small drop of water is suspended motionless in air with a uniform electric field that is directed upward and has a
a 12 kg block rests on a frictionless surface and is attached to a horizontal spring of constant k 25 nm the block is
a permanent bar magnet has a field strength of 1t assume we have a circular wire loop of radius r050 cm that is
an ac generator consists of 8 turns of wire in a loop or coil the cross-sectional area of the loop is a009 m2 with a
a particle undergoes uniform circular motion of radius 274 microm in a uniform magnetic field the magnetic force on the
a 10 kg block of ice has a temperature of -13degc the pressure is one atmosphere the block absorbs 410106 j of heat