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A remote-controlled car's wheel accelerates at 22.1rad/s2. if the wheel begins with an angular speed of 10rad/s, what is the wheel's angular speed after exactly eleven fullturns? answer in units of rad/s.
In a typical experiment to study the force between electric currents in identical fixed and movable wires, the centres of the wires were separated 0.687 cm and the length of the movable wire was 26.5cm. The apparatus was set up so as to produce an..
A family ice show is held in an enclosed arena. The skaters perform to music playing at a level of 71.5 dB. What total sound intensity engulfs you
A gymnast with mass m1 = 43.0 kg is on a balance beam that sits on (but is not attached to) two supports. What is the force the left support exerts on the beam
Babies recovering from surgery need to be fed milk from an open syringe through a nasogastric tube, a slender tube that passes in one nostril and down into their stomach
A gold prospector finds a solid rock that is composed solely of quartz and gold. The mass and volume of the rock are, respectively, 13.1 kg and 2.08 × 10-3 m3, Find the mass of the gold in the rock
A flywheel of mass 185 kg has an effective radius of 0.62 m (assume the mass is concentrated along a circumference located at the effective radius of the flywheel)
A bucket filled with dirt of mass 22 kg is suspended by a rope that hangs over a pulley of mass 31kg and radius 0.15 m. everything is at first at rest.
A 120-V motor has mechanical power output of 2.50 hp. It is 90% efficient in converting power that it takes in by electrical transmission into mechanical power. Find the current in the motor
calculate the energy released by the alpha decay of 222Rn, calculate the range of the alpha particle in water
Compute the voltage drop along a 28 m length of household no. 14 copper wire (used in 15 A circuits). The wire has diameter 1.628 mm and carries a 14 A current
An isotope of the element Thalium, TI-206, what mass of the isotope will be left after 9.3 minutes have elapsed
You are on a spaceship that has discovered a giant artifact made by an alien civilization. what is the magnitude of the force of gravity on your ship from the semi-circle
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