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consider a roller coaster as it travels near the bottom of its track as sketched in the figure below at this point the
a thin metal film of length 280 cm width of 0700 cm and thickness of 300 micrometers is used to measure the hall effect
a narrow flat coil wound on a square frame has 120 turns and sides of 215 cm it carries a current of 205 a and is
two sources emit waves that are in phase with each other what is the largest wavelength that will give constructive
a spinning disk has a moment of inertia about its center equal to 00 kgm2 a 40 kg mass is placed at the outer edge 050
let an initial velocity of a flywheel be 20 rads and let it be slowing at 40 rads how many radians will it pass through
unpolarized light with an average intensity of 845 wm2 enters a polarizer with a vertical transmission axis the
calculate the vertical distance a water ballon dropped from rest covers in 9988 seconds of free
the magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0939 wm2 the wave is
a radiometer has two square vanes each measuring 10 cm by 10 cm attached to a light horizontal cross arm and pivoted
at a carnival you can try to ring a bell by striking a target with a 103-kg hammer in response a 0426-kg metal piece is
the model airplane in figure 57 is flying at a speed of 144 ms on a horizontal circle of radius 172 m the mass of the
a plate of glass with parallel faces having a refractive index of 146 is resting on the surface of water in a tank a
jupiter makes one complete orbit of the sun every 119 years calculate the radius of the orbit of jupiter hint it is a
a projectile is fired straight upward at 166ms how fast is it moving at the instant it reaches the top of its
question 1 how should you quote the following measured value and associated error in the form xbest plusmn deltax value
a block having mass m 10kg rests on a horizontal surface us4 and uk2 what is the friction force if an external
at a ball game consider a baseball of mass m 107 kg that falls directly downward at a speed v 50 ms into the hands of
a student sits on a rotating stool holding two 4 kg objects when his arms are extended horizontally the objects are 08
a ball is thrown horizontally from a 12 m high building with a speed of 80 ms how far from the base of the building
a person is riding a bicycle and its wheels have an angular velocity of 139 rads then the brakes are applied and the
the radious of curvature of convex mirror is used on a moving automobile is 2 m a truck comming behind it at a
the property of objects to resist changes in motion is called inertia if an object has a mass of m 4185 kg and it
a small bag of sand is suspended by a wire of length l12 m a bullet of mass m8 gr moving with speed v0600 ms in the
a ray of light traveling in air strikes the surface of mineral oil at an angle of 234 with the normal to the surfaceif