A student is attempting to design a simple generator that is capable of generating the greatest amount of electric current. He created four prototypes each with a different number
of turns of wire. Two of the prototypes used strong magnets and the other two used weak
magnets. He tested each prototype by rotating the magnets inside the turns of wire and
measured the current generated by each prototype.
Current
Number of
furns of the
Strength of
magnet
Rotations per
minute (RPM) of
the magnet
wire
100
Strong
500
0.5 A
200
Strong
1000
1.5A
300
Weak
500
0.6 A
400
Weak
1000
0.9 A
The student's teacher tells him to revise his plan because no valid conclusions can be drawn.
How should he fix his plan so conclusions can be drawn? (AKS 10c)
a. The student could add a trial using 500 turns of the wire.
b. The student could add a trial with a medium strength magnet.
The student could do several trials with the same number of turns of the wire and the
same strength of the magnet and change the rotations per minute of the magnet.
d. The student could do several trials with the different numbers of turns of the wire and
different strength magnets but keep the rotations per minute of the magnet the same.
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American eels (anguilla rostrata) are freshwater fish with long, slender bodies that we can treat as uniform cylinders 1.0 m long and 10 cm in diameter. an eel compensates for its small jaw and teeth by holding onto prey with its mouth and then rapidly spinning its body around its long axis to tear off a piece of flesh. eels have been recorded to spin at up to 14 revolutions per second when feeding in this way. although this feeding method is costly in terms of energy, it allows the eel to feed on larger prey than it otherwise could. 1.a field researcher uses the slow-motion feature on her phones camera to shoot a video of an eel spinning at its maximum rate. the camera records at 120 frames per second. through what angle does the eel rotate from one frame to the next? 2. the eel is observed to spin at 14 spins per second clockwise, and 10 seconds later it is observed to spin at 8 spins per second counterclockwise. what is the magnitude of the eels average angular acceleration during this time? 3. the eel has a certain amount of rotational kinetic energy when spinning at 14 spins per second. if it swam in a straight line instead, about how fast would the eel have to swim to have the same amount of kinetic energy as when it is spinning? 4.a new species of eel is found to have the same mass but one-quarter the length and twice the diameter of the american eel. how does its moment of inertia for spinning around its long axis compare to that of the american eel?

Abeam of light shining from water to air strikes the surface at an angle greater than 48 degrees and produces total internal reflection. if the incident beam is at a 50 degree angle what angle is the reflected beam 13 25 50 100

Think you could get me the answers ?