While walking home on a dark night, joanna saw a bright light in the sky and concluded that it must have been a spaceship
from another planet. which of these questions could joanna answer using scientific methods of investigation?
can aliens read our minds?
does loanna actually believe in aliens?
eueve in aliene
what is the aliens spacecraft made from?
what percent of people in the area saw a bright light that night?
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2.22/3.33 points | previous answers tamucolphysmechl1 4.pre.002. ask your teacher my notes question part points submissions used on a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 2.40 m/s. (a) what are the magnitude and direction of the velocity of the red glider after the collision? magnitude 3.33 m/s correct: your answer is correct. direction correct: your answer is correct. (b) is this collision elastic?

If steel is more dense that lake water, why can a boat float

An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?