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Jonathan and Jane are sitting in a sleigh that is at rest on frictionless ice. Jonathan's weight is 800 N, Jane's weight is 600 N, and that of the sleigh is 1000 N. They see a poisonous spider on the floor of the sleigh and immediately jump off. Jonathan jumps to the left with a velocity of 5.00 m/s at 30.0° above the horizontal (relative to the ice), and Jane jumps to the right at 7.00 m/s at 36.9° above the horizontal (relative to the ice). Calculate the sleigh's horizontal velocity (magnitude and direction) after they jump out.
deepas uncle was surprised to see the fast changes in the world. he is not so educated. he asked deepa to tell him the
A single household circuit operates at 120 V and is protected by a 10 A circuit breaker. How many 50 W lamps can be operated simultaneously without tripping the circuit breaker?
Spark plugs should be tightened to a specified torque of 9.28Nm. You have a wrench that is 0.39 m long, What force must you exert on the wrench
A puma can jump to a height of 3.7 meters when leaving the ground at an angle of 45 degrees. With what speed must the animal leave the ground to reach that height
A roller coaster at the Six Flags Great America amusement park in Gurnee, Illinois, incorporates some clever design technology and some basic physics. What is the radius of the arc of the teardrop at the top
Two hockey pucks of equal mass, one red and one blue, are involvedin an elastic collision. Determine the final speed of each puck
question a 30.0cm x 60.0cm rectangular circuit containing a 15.0olm resistor is perpendicular to a uniform magnetic
A piece of putty of mass m = 0.70 kg and velocity v = 2.5 m/s moves on a horizontal frictionless surface. It collides by and sticks to a rod of length L = 0.98 m and mass M = 2.0 kg which pivots about a fixed vertical axis at the opposite end of the ..
A person having skin of surface area 1.85m2 and temperature 30.0oC is resting in an insulated room where the ambient air temperature is 20.0oC. By how much does the person change the entropy
Two converging lenses are placed 88.0 cm apart. An object is placed 1.100 m to the left of the first lens, which has a focal length of 27.0 cm. What is the focal length of the second lens
Two converging lenses are used in a particular device. The first lens (the one closest to the object) has a focal length of 200 mm. Find the distance of the final image along with its magnification
A gem-quality diamond has a small flaw located 1 mm directly below one face. How far below the face does this flaw appear to an observer
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