A block of copper (c = 390 J/kg°C) is heated from 20.0 C to 60.0 C. How much heat (in J) is absorbed by the copper if its mass is 45.0 g?

What is potential energy? energy transferred as waves energy related to motion energy produced by moving electric charges energy associated with position or shape

What is a likely consequence of preventing prescribed burns to forest ecosystems? a. natural wildfires will burn longer and hotter when they occur because there is more underbrush and fuel available. b.

Terry is convinced that heating peanut butter will increase its mass so that it covers more bread. Is he correct? A. No, mass is only equal to temperature B. No, heating matter does not affect mass C. Yes, mass is directly relates to temperature D.

Supposing you were in space ... in a weightless environment, would it require a force to set an object in motion? Explain ... it wouldn't, right? because it's in space, no gravity to pull it, or act upon it ... so it would just float?

How can a scientist use adaptations to determine if one organism is related to another?

Does 59feet = 170000 meters

The chemical reaction that causes chromium to corrode in air is given by 4Cr+3O2→2Cr2O3 in which at 298 K ΔH∘rxn = - 2256 kJ ΔS∘rxn = - 549.

Witch of the statements about water is true?

In what direction does an applied force move an object? In the same direction as the force Independent of the force In the opposite direction of the force Perpendicular to the force

You (60 kg) and your friend (80 kg) are both floating on separate tubes next to each other on the San Marcos River. Now you push your friend with 10 Newton. Select all correct statements. A.