Answer:For a perfectly elastic collision, the final velocities of the carts will each be 1/2 the velocity of the initial velocity of the moving cart. For a perfectly inelastic collision, the final velocity of the cart system will be 1/2 the initial velocity of the moving cart.
Explanation:
Answer is d 30 m/s, North
Given: Distance d = 60 m; Time t = 2 seconds
Required: Average Velocity Vave. Vi + Vf/2
Formula: d = 1/2 at² derive acceleration a = ? and a = Vf - Vi/t
a = 2d/t²
a = 1/2(60 m)/( 2 s)²
a = 30 m/s²
Solve for final Velocity Vf = ?
a = Vf -Vi/t
Vf = at Since Initial Velocity is zero
Vf = (30 m/s²)(2 s)
Vf = 60 S
For average velocity Vave. = Vi + Vf/2
Vave. 0 + 60 m/s/2
Vave = 30 m/s North.
Answer:
You did not add the photo, but the bright red stars are the largest in size (radius).
Explanation:
Red stars are giant, luminous stars. They are the stars with the largest size (radius) among all the other stars and usually have very low temperatures (below 500k). The brighter these stars appear to human eyes, the greater their actual size.
Red stars have rays hundreds of times larger than the sun, literally being the biggest stars in space. Despite their gigantic size, these stars have low density.
You can determine the density of an object using mass and volume.
