A projectile is fired into the air. Three characteristics of its subsequent motion are I) the horizontal component of velocity
II) the vertical component of velocity
III) the acceleration
Neglecting air resistance, which characteristic(s) change(s) whilst the projectile is in the air.

I only
II only
II and III only
I and II only

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

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adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

the assestment will probley apele with cause and effect

connect the batteries in series and hope