Show Work: What is the acceleration of a 2.3 kg toy car which has the force of 25 N pushing it forward and 6.8 N of friction pushing it back

What is hidden during a lunar eclipse? isn't the moon hidden?

Assume similar data for the motion of the blood in your aorta. estimate how many beats of the heart it will take the blood to get from your heart to your brain. (assume that the distance from your heart to your brain is 30 cm)

Why don't you see your reflection in water with waves or repples