The pistol shrimp has one big claw that snaps shut with remarkable speed. The part of the claw that rotates moves through a 90° angle in a time interval of 1.5 ms. We assume that the claw is 1.75 cm long and that it undergoes a constant angular acceleration. Required:
a. What is the angular acceleration? Assume the claw starts from rest.
b. What is the final angular speed of the claw?
c. What is the tangential acceleration of the tip of the claw?
d. How fast is the tip of the claw moving at the end of its motion?

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

newton's first law of motion

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