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the power of sunlight reaching each square meter of the earths surface on a clear day in the tropics is close to 1 000
a string oscillates according to the equation below y 030 cm sin3 cm-1x cos20 s-1ta what is the amplitude of the two
the clarinet is well modeled as a cylindrical pipe that is open at one end and close at the other find the wavelength
two people hear a tornado siren but one listener is 225 times farther away from the source of the sound than the other
a ball of aluminum is at a depth of 1000 m under water whose density is 1000 kgm3 the bulk stress on the ball due to
you have a string with a mass of 123 g you stretch the string with a force of 987 n giving it a length of 193m then you
a flagpole consists of a flexible 515 m tall fiberglass pole planted in concrete the bottom end of the flagpole is
a 013 m segment of wire lies along the y-axis and carries a current of 38 a in the negative y direction a uniform
a particular wire has a diameter of 17 mm and length of 13 m if its resistance is 15 m what is the resistivity of the
two resistors of resistance r are connected in parallel the combination is connected in series to a resistor of
a potential difference of 20 v is applied across a wire of cross sectional area 25 mm2 the current which passes through
when a potential difference of 166 v is applied to the plates of an air-filled parallel-plate capacitor the plates
a pair of narrow slits separated by 18 mm is illuminated by a monochromatic light source light waves arrive at the two
a father racing his son has 12 the kinetic energy of the son who has 13 the mass of the father the father speeds up by
an uncharged capacitor is connected to a 440v battery until it is fully charged after which it is disconnected from the
nanoopticsbull a perfect negative index lens is used with a single moleculehow long time will it take to form a perfect
a child launches an air powered toy rocket up into the air giving it an initial velocity of 6ms at an angle of 80degree
an ideal which and pulley system is used to haul a box of books m50kg up a ramp as shown in figure 2 the ramp makes an
two conductors having net charges of 130 microc and -130 microc have a potential difference of 130 v between thema
79 mol of helium are in a 14 l cylinder the pressure gauge on the cylinder reads 68 psi what is the average kinetic
a potential difference of 160 v is applied across a wire of cross-sectional area 401 mm2 and length 983 km the current
ball 1 with a mass of 150 g and traveling at 15 ms collides head on with ball 2 which has a mass of 350 g and is
with what minimum speed must you toss a 140 g ball straight up to hit the 14 m -high roof of the gymnasium if you
you are flying to chicago for a weekend away from the books in your last physics class you learned that the airflow
a 02kg marble is launched off the end of a table and can be considered to be in free fall the initial speed of the