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two 40 cm by 40 cm square plates is used to make a capacitor they are separated by 050 x 10-6m of air if the capacitor
a 031 mev x-ray photon collides by an electron and scatters straight back the way that it camea what is the energy of
a 20 kg block is pulled across a horizontal surface by a rope the block has an acceleration of 23 ms2 and the
the mass of a mass and spring system is displaced 10 cm from its equilibrium position and released a frequency of 40 hz
a 050 kg mass is attached to a spring of spring constant 20 nm along a horizontal frictionless surface the object
optimums prime is flying straight up at 72ms when he accidentally drops his mega-ray blaster and it falls 81 m to the
to minimize the power loss in the conducting wires would it be better to deliver 100 watts of power in the form of a
a 2658 n force is applied 2 cm from the axis of rotation and is parallel to the lever arm a rotating body has an
an observer to the right of the mirror-lens combination shown in the figure below sees two real images that are the
a small earthquake starts a lamppost vibrating back and forth the amplitude of the vibration of the top of the lamppost
one slit of a double-slit arrangement is covered with a thin plastic plate of refractive index 14 and the other by a
a thin film of water sits on top of a flat piece of glass and light is incident from below see the subsequent figure if
assume light with a wavelength of 465nm in a vacuum is incident upon fused quartz which has an index of refraction of
a 80-kg monkey climbs a uniform ladder with weight w 137102 n and length l 350 m as shown in the figure below the
a uniform disk with a mass of 800 g and a radius of 170 cm is rotating on frictionless bearings with an angular speed
light rays from a distant point source are incident perpendicular to the flat side of a semicircular glass plate of
two long straight parallel wires carry the similar current in te same direction a use both the right-hand source and
assume you are stopped in your car at a traffic light and an ambulance approaches you from behind with a speed of 12 ms
a block of a certain material begins to slide on an inclined plane when the plane is inclined to an angle theta 571deg
1 a hot-air balloon achieves its buoyant lift with heating the air inside the balloon which makes it less dense than
a circuit breaker is rated for a current of 15a rms at a voltage of 120v rmsa what is the largest value of peak current
a 150-kg block slides across ice and comes to a stop in 1250m1 coefficient of kinetic friction among ice and block is
an engineer is designing a spring to be placed at the bottom of an elevator shaft if the elevator cable must happen to
a horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a vertical axle during
a man holds a double-sided spherical mirror therefore that he is looking directly into its convex surface 55 cm from