Ablock of mass m=0.750 kg is fastened to an unstrained horizontal spring whose spring constant is k=82.0 n/m. the block is given a displacement of +0.120m, where the + sign indicates that the displacement is along the +x axis, and then released from rest. c) what is the maximum speed of the block? group of answer choices

13.12 m/s

Explanation:

According to the law of energy conservation, the maximum speed of the block occurs when all the spring potential energy is converted to block kinetic energy. That is:

we can substitute m = 0.75 kg, k = 82 N/m, and x = 0.12m

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:

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