At each moment during its flight, a projectile has a velocity v and an acceleration a. the components of these variables are: vx = x component of the velocity vy = y component of the velocity ax = x component of the acceleration ay = y component of the acceleration which of these components remain constant throughout the motion? assume that air resistance is absent.

-- There are no horizontal forces on the projectile, so there's nothing acting on it to change its horizontal speed.

ax ... the x-component of its acceleration is zero.

vx ... the x-component of its velocity, is constant.

-- The only vertical force on the projectile is the force of gravity.

ay ... the y-component of its acceleration is constant ... 9.8 m/s²

vy ... the y-component of its velocity DECREASES at the rate of 9.8 m/s/second

answer: question1

1,000 tons

question2

3: 8

question 3

store d

step-by-step explanation:

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.