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A fisherman in a boat is using a "10-lb A fisherman in a boat is using a "10-lb test" fishing line. This means that the line can exert a force of 45N without breaking.
(a) How heavy a fish can the fisherman land if he pulls the fish up vertically at constant speed?
(b) If he accelerate s the fish upward at 2m/s², what maximum weight fish can he land?
(c) Is it possible to land a 15-lb trout on a 10-lb test line? Why or why not?
A CD has a mass of 17 g and a radius of 6.0 cm. When inserted into a player, the CD starts from rest and accelerates to an angular velocity of 17 rad/s in 0.85 s. determine the net torque acting on it
One generator uses a magnetic field of 0.15 T and has a coil area per turn of 0.045 m2. A second generator has a coil area per turn of 0.015 m2. What magnetic field should be used in the second generator
A 1kg block of ice at 0o C falls into alake whose water is also at 0o C, and 0.01 kg of the icemelts. What was the minimum altitude from which the ice fell
a demonstration gyroscope consists of a uniform disk with a 38-cm radius mounted at the midpoint of a light 59-cm axle.
A spherical Balloon is inflated at the rate of 144pie cubic inches per minute (in^3/min). How fast is the radius of the balloon changing when the radius is 4 inches? Recall the formula for volume of sphere: V(4/3) pieR^3?
A 0.16 kg block oscillates back and forth along a straight line on a frictionless horizontal surface. Its displacement from the origin is given by the following equation.
A transformer with 2 coils wrapped around an iron core is connected to a generator and a resistor, There are 13 turns inthe primary coil and 25 in the secondary. The peak voltage inthe resistor is 63V. What is the peak emf in the generator?
A 0.464-nm photon collides with a stationary electron. After the collision, the electron moves forward and the photon recoils backwards. Find the momentum of the electron
At a distance of 1.1 centimeter from a very long charged wire, the electric field have magnitude 2000 N/C and is directed toward the wire. Obtain what is the charge on a 1.0 cm length of wire
a proton moves vertically upward perpendicular to a uniform magnetic field and deflects to the right as you watch it. What is the direction of the magnetic field
A 35 mm camera has a rectangular array of CCDs (light sensors) that is 24 mm by 36 mm. How far should the person stand from the camera if the focal length of the lens is 63 mm
A water-skier, moving at a speed of 9.15 m/s, is being pulled by a tow rope that makes an angle of 37.0° regarding the velocity of the boat (see the Illustrating). The tow rope is parallel to the water. The skier is moving in the similar direction..
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