You are riding your bike at 5 mis. In order to avoid hitting a child that has run into the street, you slam on your brakes and slow to a stop. It takes you
1.5 seconds to fully stop. What was your acceleration?

A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.

The photo above shows oil and vinegar in a pitcher. the top make a claim about about the density of the vinegar compared to the density of the oil summarize the evidence to support the claim and explain your reasoning