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Two co-centric hollow spheres have radii of R1 and R2 and have uniform surface charge densities s1 and s2. The two charge densities are positive.
Derive an expression for the electric field (vector) outside the two spheres (r > R2).
A dragster drives a quarter mile (402 m) at a constant rate of acceleration, starting from rest and finishing the race at a final speed of 450 km/hr. what average power was developed by the engine
A spacecraft approaching the earth launches an exploration vehicle. After the launch, What is the speed of the exploration vehicle
The string will break if its tension exceeds 50-{rm N}. The stone is whirled in a horizontal circle on a frictionless tabletop; the other end of the string remains fixed. Find out the maximum speed the stone can attain without breaking the string.
What is the spring constant of each spring if the empty car bounces up and down 1.4 times each second?
An ideal monatomic gas is contained in a vessel of constant volume 0.340 m3. The initial temperature and pressure of the gas are 300 K and 5.00 atm, Find the specific heat of the gas
q1. if air drag is negligibly small how fast is sequoia cone moving while it reaches the ground if it dropped from the
A 1.98 10-9 C charge has coordinates x = 0, y = ?2.00; a 2.73 10-9 C charge has coordinates x = 3.00, y = 0; and a -4.95 10-9 C charge has coordinates x = 3.00, y = 4.00, where all distances are in cm.
Calculate the mass flow rate (in grams per second) of blood (Ï = 1.0 g/cm3) in an aorta with a cross-sectional area of 2.0 cm2 if the flow speed is 47 cm/s
A camel sets out to cross the desert, which is 45.2 km wide in the north-south direc- tion. Calculate the camel's eastward displacement while he crosses the desert
Four vectors A,B,C ,D and are shown (not to scale). Vector A has magnitude 23.0 and acts at an angle of 14.7 degrees with respect to the positive x axis. find the magnitude and direction of the resultant vector R
A roller coaster track has a hill with a circular curve of radius r =15 m. What is the normal force on the 60-kg passenger
A major league catcher catches a fastball moving at 80.0mi/h and his hand and glove recoil 10.0 cm in bringing the ball to rest. If it took 0.00500s to bring the ball (with a mass of 300g ) to rest in the glove,
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