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a thin layer of fluid to be identified by its index of refraction is poured into a very shallow container the bottom of
an electric dipole is formed from two charges spaced 150cm apart the dipole is at the origin oriented along they-axis
a vibration platform oscillates up and down with an amplitude of 92 cm at a controlled variable frequency suppose a
a baseball catcher moves his glove away from a 330ms fastball as he catches it if th force exerted on th ball is
a platform is rotating with an angular speed of 300 rads and an angular acceleration of 110 rads2 at a point on the
a bulldozer pushes a large rock and the two move forward together the bulldozer does 1500 j of work on the rock how
a weather vane initially at rest has a moment of inertia of 0104 kg middot m2 about its axis of rotation a 475 g piece
a diver makes 25 revolutions on the way from a 90-m-high platform to the water assuming zero initial vertical velocity
two 480 v rms loads are connected in parallel the two loads draw a total average power of 40800 w at a power factor of
mars orbits the sun at a mean distance of 228 million km in a period of 687 days the earth orbits at a mean distance of
an electrical load operates at 240 v rms the load absorbs an average power of 8 kw at a lagging power factor of
a sinusoidal voltage having a maximum amplitude of 625 v is applied to the terminals of a 50 ohm resistor find the
a long narrow steel rod of length 25000 m at 25 c is oscillating as a pendulum about a horizontal axis through one end
a honeybee with a mass of 0175 g sits on one end of a floating 418 g popsicle sticka if the bee walks on the stick with
a charged particle initially moving south in a vertically downward magnetic field is deflected toward the east what is
a helicopter propeller blade starts from rest and experiences a constant angular acceleration of 105 rads2 find the
two 44 kg bodies a and b collide the velocities before the collision are a 12 46 ms and b -32 22 ms after the
a 3 kg block slides with a speed of 11 ms on a frictionless horizontal surface until it encounters a springa if the
in a game of pool a cue ball with an initial velocity of 150 ms directed to the right along the x-axis collides with
suppose that the coefficient of friction between your feet and the floor while wearing socks is 0250 knowing this you
a potato cannon is used to launch a potato on a frozen lake the mass of the cannon mc is 10kg and the mass of the
a baseball player decides to keep going past second base and try for third base the 62 kg player begins sliding 340 rm
your friends 00185 kg graduation tassel hangs on a string from his rearview mirror when he accelerates from a stoplight
the camera is 450 m in front of the mirror the bird is at camera level 689 m to your right and 412 m from the mirror
a respiration monitor has a flexible loop of copper wire which wraps about the chest as the wearer breathes the radius