Why would a long series of gradual ramps be better than one short, steep ramp for moving heavy blocks of stone?

Two coffee cups one at 80 degrees c another at 60 degrees c are put into a large cup what is the final temperature of the coffee

2 clues about a chemical change

Rank from greatest to least the amount of lift on the following airplane wings: (a) area 1000 m2 with atmospheric pressure difference of 2.1N/m2, (b) area 800 m2 with atmospheric pressure difference of 2.

If nothing is impossible shouldnt it be possible for something to be impossible?

Pivot joints may be found in the:

How much heat is contained in 100 kg of water at 60.0 °C?

Which of the following statements is the best definition of weather? Weather is the current conditions in the atmosphere. Weather is the usual conditions in the atmosphere. Weather is the average conditions in the atmosphere.

Analyze: In the series circuit what characteristic was common throughout the experiment? What changed as you added more light bulbs?

StA A boat takes off from the dock at 2.5 m/s and speeds up at 4.2 m/s2 for 6.0 s. How far has the boat traveled? Round your answer to the nearest whole number.

In Part A, you determined that the heat added to the coffee is what you got. If it takes 4.2 J of energy to raise the temperature of 1.0 mL of coffee by 1.0∘C, then it should take twice as much energy to raise the temperature of 2.