You are walking around your neighborhood and you see a child on top of a roof of a building kick a soccer ball. the soccer ball is kicked at 51° from the edge of the building with an initial velocity of 13 m/s and lands 63 meters away from the wall. how tall, in meters, is the building that the child is standing on?

Explanation:

From the exercise we know that the child hits the ball with an initial velocity, its direction and where it hits the ground.

First of all, we need to calculate how long does it take to hit the ground

knowing that x=63m

Now, from free falling object's formula we know that position is:

When the ball hits the ground it is at y=0m

So, the building is 213m tall

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:

an energy transformation flow diagram is shown

where is it ?