Explain why Dalton's theory was more successful than Democritus' theory.

Roger pushes a box on a 30° incline. If he applies a force of 60 newtons parallel to the incline and displaces the box 10 meters along the incline, how much work will he do on the box?

What is the definition of one Joule?

An object that does not transfer heat easily is a (n): A. radiator B. insulator C. conductor D. convector

If an object repels from another negatively charged object, the first object is

One car drives north at 60 mph. Another car leaces 30 minutes later and drives south at 50 mph. How long will it take for the two cars to be 360 miles apart?

a motorcycle begins at rest and accelerates uniformly at 7.9 m/s2. We want to find the time it takes the motorcycle to reach a speed of 100 km/h. Which kinetic formula would be most useful to solve for the target unknown?

When a covalent or an ionic bond is formed a chemical change has occurred. Which of these is not associated with a chemical change? A) The atoms of the substance produced have been rearranged.

Two 8 ohm resistor in parallel

After a quick review of the textbook, rank the following elements in order of increasing density: (A) copper, (B) nickel, (C) titanium, (D) silicon.

How much power is expended if you lift a 60 n crate 10 meters in 1 second? a. 0 w b. 6 w c. 10 w d. 60 w e. 600 w?