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After you pick up a spare, your bowling ball rolls withoutslipping back toward teh ball rack with a linear speed of v = 3.36m/s. To reach the rack, the ball rolls up a ramp that rises througha vertical distance of h = 0.47 m. What is the linear speed of the ball when it reaches the top of the ramp?
A cart loaded with bricks has a total mass of 20 kg and is pulled at constant speed by a rope. How much work is done on the cart by the rope
A 5 kg box block is pushed 3 m up a vertical wall with constant speed by a constant force of magnitude F at an angle of 60 degrees with the horizontal.
the peak power of a 6ft. diameter antenna is 10 watts and its duty cycle is 0.250. the wave length is 0.03mcycle.
A person sees a heavy stone strike the concrete pavement. A, moment later two sounds are heard from the impact: How far away did the impact occur
A beam of ultraviolet radiation, with frequency of 2.64x1015 Hz is directed on a clean metal surface. The work function of the metal is 3.40 eV. Calculate the maximum kinetic energy for an electron dislodged from the surface by the radiation.
If a spaceship is approaching the earth at 0.18c and a message capsule is sent toward it at 0.46c relative to the earth, what is the speed of the capsule relative to the ship
a steel wire 2.04 m long with a circular cross section must stretch no more than .260 cm when a 400.3 N weight is hung from one of its ends, what is the minimum diameter must this wire have
A zookeeper and a monkey. The zookeeper shot a tranquilizer gun with an initial v=30m/s. The monkey was up on a tree 140m high. What is the monkeys speed during free fall
A certain lightbulb filament when hot has a resistance of205 Ω. The potential difference across the filament at acertain instant is standard household voltage, 120 V.
a 600 ton Boeing business jet is flying at 500 mph at a constant altitude of 35,00 ft. if the jet is holding passengers as cargo amounting to a weight of 37 tons, what is the lifting force acting on the jet provided by the air?
A person exerts 200 J of work onto a 50 N crate while moving it 2 m. If the crate also undergoes 10 N of friction, the net energy for the crate is what
A thin, 70.0g disk with a diameter of 7.50cm rotates about an axis through its center with 0.270J of kinetic energy
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