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a 15000 kg f-18 jet fighter lands at 50 ms on an aircraft carrier its tail hook snags the cable to slow it down the
a house has well-insulated walls it contains a volume of 75 m3 of air at 295 k a consider heating it at constant
a 10-g ball moving at 4 cms to east collides with a 5-g ball moving to the west at 6 cms if the collision is elastic
bored a boy shoots his pellet gun at a piece of cheese that sits keeping cool for dinner guests on a massive block of
two long parallel wires are separated by 40mm the current flowing in one of the wires is twice that in the other wire
a uniform disk turns at 39 around a frictionless spindle a nonrotating rod of the same mass as the disk and length
the combination of an applied force and a friction force produces a constant total torque of 352 n middot m on a wheel
a model airplane with mass 0743 kg is tethered to the ground by a wire so that it flies in a horizontal circle 297 m in
an electric motor turns a flywheel through a drive belt that joins a pulley on the motor and a pulley that is rigidly
consider the system shown in the figure below with m1 240 kg m2 107 kg r 0250 m and the mass of the pulley m 500 kg
the combination of an applied force and a friction force produces a constant total torque of 366 n middot m on a wheel
a model airplane with mass 0757 kg is tethered to the ground by a wire so that it flies in a horizontal circle 297 m in
the secondary coil of a transformer provides the voltage that operates a small radio the turns ratio of the transformer
a circular loop of wire of 2500 turns is placed perpendicular to a uniform magnetic field of 500 t the area of the loop
a 200 m long wire with a square cross-section of 20 mm x 20 mm is made of a resistive material when a potential
a 200-volt battery is connected to a parallel-plate capacitor that has a dielectric slab k 2 filling the space between
a bullet of mass 700g is fired horizontally into a wooden block of mass 129kg resting on a horizontal surface the
a 1000 kg car is traveling at a speed of 20 ms-1 east and a 1200 kg car is traveling at 22 ms-1 west what is the
a tabletop gamer has designed a game that requires three dice to be thrown onto a tray with a measurement grid to add
a person with a nearsighted eye has near and far points of 20 cm and 26 cm respectively assuming a lens is placed 14 cm
a 25-kg child is sitting on the seat of a swing 10 m long her father pulls the swing back until the swing makes an
an object of mass 4 kg is initially at rest on a frictionless ice rink it suddenly explodes into three pieces one
a spring of spring constant k 340 nm-1 is used to launch a 15-kg block along a horizontal surface by compressing the
a 20-kg child swings back and forth on a swing such that her height h in m from the ground as a function of x is