Ari is swimming a 25-meter race. after swimming 6 meters, she catches up to amanda in a ratio of 7: 3 from the 6-meter mark. at what meter mark does ari catch up to amanda? round to the nearest tenth, if necessary. ari catches up to amanda at meters.

Ari catches up to Amanda at 19.3 meters

Explanation:

We have given Ari is swimming a 25-meter race.

It is given that after swimming 6 meters she catches up to Amanda in a ratio of 7:3 from the 6-meter mark.

So ,The distance between 6 meters and 25 meters = 25-6 =19 meters

It is given that she catched Amanda in ratio 7:3

So, she catched her at of the distance

So, the distance at which she catched Amanda

Ari catches 13.3 metres from 6 m marks

So the total distance = 13.33+6 =19.33 meters

So Ari catches up to Amanda at a distance of 19.33 meters

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:

come closer and become far apart and become steam/gas