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what is refraction what happens to each property of a wave during refraction use a specific example in your
what is difference between reflection and refraction in
a 20 kg crate rests on a level surface the surface has a coefficient of kinetic friction of 015 and a coefficient of
a long wire carrying a 590a current reverses direction by means of two right-angle bends as shown in the figure figure
at the instant of the figure a 870 kg particle p has a position vector r of magnitude 180 m and angle theta1 470deg
derive the relationship between effort load p load on the inclined surface w angle of inclination alpha and coefficient
a resistor is made out of a long wire having a length l each end of the wire is attached to a terminal of a battery
a jupiter day the time for jupiter to complete one rotation about its own axis is 99 hours or 356x104s if jupiter were
three resistors 122 509 andr are connected in series with a 150 v battery the total current flowing through the
olympic sprinter usain bolt set the world record in the 100 meter dash with a time of 958 seconds the phyics behind his
a wheel of radius 2m is undergoing rotational motion if it has a rotational acceleration of 50s-2 what is its
1 for the figure shown to the right what is the electric field magnitude and direction and electric potential at
consider two equal and opposite torques acting on a rotating object the angular momentum of the object isa increasingb
you are observing a 4-particle system the net external torque on the system is 20nm what is the net internal torque on
a metal wire has a resistance of 100 ohms at a temperature of 20 degrees c if the same wire has a resistance of 1055
as steady force of 2000 n is used for 8seconds to accelerate a 1500 kg car which was initially going 20msa what impulse
in the figure a constant horizontal force upper f overscript right-arrow endscripts subscript app of magnitude 66 n is
describe how kepler finds indications of exoplanets and why this is important this response should be several short
the force is related to the linear deformation by fy l al0 we need to first determine the area api r2 pi 000527854x10-5
consider an object undergoing uniform circular motion at constant speed v and radius r in the following questions
a concave mirror has an object placed in front of it a distance x from the mirror an inverted image is formed whose
1 do heavier objects fall more slowly than lighter objecets2 why do objects float in liquids denser than themselves3 a
a series ac circuit contains a 250-ohm resistor a 15-mh inductora 35uf capacitor and an ac power source of voltage
what is the relationship between the appearance of the sample and the ntu
a thin flexible rod of length l with radius r carries a total charge q uniformly along its length the rod is then bent