For a vacation, you travel to city A 40 km away in 1 hour. The next day, you travel to city B in 4 hours, which is 85 km away. On the final day, you travel for 2 hours to city C, 65 km away. What was your average speed over the course of the entire trip?

An unknown substance has a melting point of 1064 ∘c, is insoluble in water, conducts electricity as a solid, and is hard. given these properties, which of the following are possible identities for the unknown substance? check all that apply. view available hint(s) check all that apply. sio2 f2 au kbr

An open cart is moving along a straight frictionless horizontal track. when rain starts falling vertically into the cart, what happens to the speed of the cart?

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?