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A fisherman is reeling in afish. In 9.0 s he winds 3.5 m of fishing line onto a reel whoseradius is 2.3 cm (assumed to be constant as an approximation). Theline is being reeled in at a constant speed. Determine the angular speed of the reel.
At the equilibrium position, the piston is situated at the hight l0 from the bottom of the cylinder. The pressure outside of the cylinder is P0, the cross section of the cylinder and the piston is S.
The resistance of a bagel toaster is 14 ?. To prepare a bagel, the toaster is operated for one minute from a 120-V outlet. How much energy is delivered to the toaster
How various meters away is a cliff if an echo is heard 0.475 s after the original sound? Assume that sound traveled at 343 m/s on that day.
A uniform, spherical cloud of interstellar gas has mass 2.0x10^30 kg, and radius 1.0x10^13 m and is initially rotating with a period of 1.4x10^6 yrs. what will be the star's rotational period
Two scales on a voltmeter measure voltages up to 21.0 and 30.7 V, respectively. Determine the coil resistance
an infinite line of charge produces a field of magnitude 4.90 x 104 nc at a distance of1.9m. calculate the linear
A lense with a circular aperture of 1cm in diameter is just barely capable of serperating two objects, What's the wavelength of the light from the two objects
a capacitor is formed from a hollow copper sphere of inner radius r 36.3 cm and outer radius r 45.4 cm. calculate the
A 0.40 kgball, attached to the end of a horizontal cord, is rotated in acircle of radius 1.5 m on a frictionless horizontal surface. what is themaximum speed the ball can have
What is the acceleration of a cart that has a mass of 50 g if it is beingpulled by mass of 90 g that is dropped off a table? What is the force that is exerted on the cart by the hanging mass?
A properly motivated kangaroo can jump over an object. what is the velocity of the kangaroo, just when it returns to the ground
Explain why it may be difficult to precisely date ocean crust aged between 85 to 125 million years old using magnetic anomalies on the sea floor.
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