Projectile motion is an example of what kind of motion

Projectile movement is an example of what kind of two-dimensional movement.

Explanation:

We call the movement of projectiles to the free movement of a body launched in a uniform gravitational field, where the acceleration of gravity is constant and vertical, the air resistance being negligible. This movement is considered a two-dimensional movement, because when we launch a projectile, its movement can always be decomposed into two movements, one horizontal and one vertical.

The horizontal movement will be uniform since there is no acceleration with a horizontal component, that is, the horizontal component of the projectile speed is constant.

The vertical movement will be uniformly varied with an acceleration equal to that of gravity.

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:

photocells convert light energy to electricity