Which numbers are Speed, Velocity or acceleration 1. Grey whales Begin their migration in september traveling south averaging 75 miles per day. 2. A carousel spins in a circular path. 3. An airplane increases speed as it takes off. 4. Usain Bolts fastest running speed was clocked at 27.8 mph. 5. A train is moving at a constant speed of 23 miles per hour.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.

1 is the answer to this problem

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

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