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a telescope is designed using an objective lens f focal length fobj2m and an eyepiece of focal length feye8cm it is
a raft has a surface area of 100m2 and a height of 100cm if it is constructed of yellow pine and floating in a lake
a string with a length of 08m is fixed at both endsa what is the longest possible wavelength for the traveling waves
a flat-bottomed barge loaded with coal has a mass of 28 105 kg the barge is 198 m long and 97 m wide it floats in
the charge on a capacitor is initially -2 microc and growing linearly with time after 100 microseconds pass the charge
the coefficient of friction between the road and the tires of a 900kg car is 0888 calculate the maximum speed for the
three resistors are connected in a system a 40 ohm and 24 ohm resistor are connected in parallel and the 18 ohm
if the radius of the earth is located 44 degrees north latitude what distance does the earth move in one
a 500g mass on a string oscillates as a pendulum the pendulums energy decays to 50 of its initial value in 30s what is
a 150-lb male athlete is running on a treadmill machine at a speed of 10 mihr in a thermally insulated room after one
at the earths surface a projectile is launched straight up at a speed of 103 kms to what height will it rise ignore air
1- two infinite lines of charge lie in the x-y-plane parallel to the y-axis line 1 has linear charge density 1 42 cm
a uniform electric field of magnitude 339 nc is directed along the y-axis a 500 microc charge moves from the origin to
glycerine in water diffuses along a horizontal column that has a cross-sectional area of 19 cm2 the concentration
a certain fluid has a density of 1110 kgm3 and is observed to rise to a height of 25 cm in a 10-mm-diameter tube the
two 30 g spheres are suspended by 90 cm long light strings a uniform electric field is applied in the x direction if
a 150-lb male athlete is running on a treadmill machine at a speed of 10 mihr in a thermally insulated room 10 after
1 an alloy is made of 30 gold 20 silver and iron the specific heats of gold silver and iron are 00308 0056 and 0107
a meterstick is hung from a string at the 25-cm mark a 050-kg object is hung from the zero end of the meterstick and
you are the operator of a 15000 v rms 60 hz electrical sub-statin when you get to work one day you see that the station
six electrons are confined to a 2-dimensional square infinite potential well with sides of length l what is the ground
one cylinder in the diesel engine of a truck has an initial volume of 600 cm3 air is admitted to the cylinder at 30 0c
a high-diver of mass 70 kg jumps off a board 10 m above the water if 2 s after entering the water his downward motion
a calculate the efficiency of a reversible engine that operates between the temperatures 6250deg c and 3450deg cb if
you walk 750 m to the east then turn 350 degrees to the north and walk another 550m determine the magnitude of your