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A spelunker is surveying a cave. She follows a passage that takes her a distance 175 m straight west, then a distance 202 m in a direction 45.0 degrees east of south, then a distance 279 m at 30.0 degrees east of north. After a fourth unmeasured displacement she finds herself back where she started.
A) Use the method of components to determine the magnitude of the fourth displacement.
B) Use the method of components to determine the direction of the fourth displacement.
20 g of helium are placed in a cylinder with a movable piston. What is the maximum temperature reached during the compression
A roofer accidently drops a bundle of shingles. If it hits the ground with a speed of 86 m/s, how fast was it moving 3 seconds earlier (g=10 m/s/s)
At a distance of 4.32m from a siren, the sound intensity is 3.75 x 10-2 W/m2. Assume that the siren radiates sound uniformly in all directions; find out the total power radiated.
A hydraulic jack for changing car tires is designed with a primary cylinder (the one you push down on) 1 cm in diameter and a secondary cylinder (the one that pushes up on the car) 5cm in diameter. how much force acts to lift the car
I want to put a 1500 g satellite into orbit around a spherical asteroid with a mass of 3x10^13 kg and a density of 5000 kg/m^3. Since it has no atmosphere, What is the radius of the asteroid
Calculate the change in the amount of bremsstrahlung that would be produced if an aluminum target were substituted for an iron target.
A spacecraft has a nonrelativistic (or classical) momentum whose magnitude is 1.5 × 1013 kg·m/s. Find the relativistic momentum of the spacecraft
An alpha particle ( a doubly ionized helium atom with a mass of 6.64 x 10^-27 kg) is traveling with a velocity v=1x10^6 m/s j, What direction is the magnetic field above
As observed from Earth, rocket Alpha moves with speed 0.814c and rocket Bravo travels with a speed of 0.638c. What is the speed of rocket Alpha
water flows with soeed1 m/s from a small hole made at the bottom of a tank filled with water. find height of the tank
Two identical conducting spherical shells S1 and S2 carry charges Q1 and Q2, respectively, Determine the total charge on S1 and S2 after they are separated
A nonconducting solid sphere of radius R has a volume charge density that is proportional to the distance from the center. That is, ? = Ar for r R, Find the expressions for the electric field inside the sphere
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