The turntable of a record player has an angular velocity of 8.0 rad/s when it is turned off. the turntable comes to rest 2.5 s after being turned off. through how many radians does the turntable rotate after being turned off? assume constant angular acceleration

Distance covered will be 10 radian

Explanation:

We have given initial angular velocity

As the record player finally stops so final angular velocity

Time t = 2.5 sec

From first equation of motion we know that

So

Now we know that

So distance covered will be 10 radian

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:

6 cos 34, 6 sin 34 trig