• an object is moving with a constant velocity of 3 m/s, takes a turn and continued moving with
same velocity what happens with acceleration? ( )
(a) Does not change
(b) Remains constant
(c) Changes after taking a turn
(c)Becomes 0

Becomes Zero

Explanation:

Whenever the velocity is constant, the acceleration is zero because = 0.

And in acceleration = ,if  = 0 , Acceleration will also be equal to zero.

the answer is to check all of them! they all apply well at least i think so!

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: