715 J of heat are transferred from

a 1.30 kg aluminum block to a

0.800 kg iron block. Find the

temperature change for the iron.

Is slime good to make with a science mothed

After an incandescent lamp is turned on, the temperature of its filament rapidly increases from room temperature to its operating temperature.

Two crates, a and b, sit at rest side by side on a frictionless horizontal surface. the crates have masses ma and mb. a horizontal force f⃗ is applied to crate a and the two crates move off to the right.

What is electricity? A) the orbit of electrons around a nucleus B) the flow of positive electric charge C) the flow of negative electric charge D) the flow of electric charge

If a step-up transformer has a primary coil with 15 turns, how many turns would be required in the secondary coil in order to increase the voltage from 80 volts to 160 volts? A. 8 turns B. 30 turns C. 80 turns D. 160 turns

1. a substance with a pH of 3 2. a substance with a pH of 10 3. a substance with a pH of 7 4. an indicator 5. a scale that represents the concentration of H30+, 0-14 A.) phenolphthalein B.) base C.) pH scale D.) neutral E.) acid

An advertisement uses a movie star holding a bottle of perfume. This ad is an example of which of the following? A. an appeal of association. B. an appeal to reason. C. an appeal to economics. D. an appeal to patriotism.

An example of an unbalanced force is

When the atom's electrons step down to lower energy levels in a thin cloud of hot gas, what is produced?

Which is the relationship between algae and fungus? Options: Parasitism. Commensalism. Mutualism.