Two balls are kicked with the same initial speeds. ball a was kicked at the angle 20° above horizontal and ball b was kicked at the angle 75° above horizontal. what ball will have bigger speed at the highest point of their trajectory? (section 4.3) ball a ball b impossible to answer without knowing their actual initial speeds. they will have the same speeds

Impossible to answer without knowing their actual initial speeds

Explanation:

Given

Ball A launched at angle of

Ball B is launched at angle of

At the highest  point Ball vertical velocity will be and there will be only horizontal velocity i.e. and

where is the velocity of A & B

thus to find which one is greater we need to know their initial velocity.

It is impossible to know which one have higher velocity at highest point.

the force on the thing and the distance the force moves the thing

the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.