How much heat is required to change the temperature of 12 grams of iron by 10 degrees Celsius if irons specific heat is 450J/g degrees Celsius

A box is pulled with a horizontal force of 500N and moves 5m. What is the work done?

Which of the following is a conductor for electricity? Question options: wood wool water rubber tire

In which situation does the energy constantly change from gravitational potential energy to kinetic energy?

Take one jar with salt water and another with pure water. put an egg into both jars. In which the jar egg floated over the liquid. Justify your answer

2. A body moves with a uniform speed of 1.5 ms-1 for 20 seconds. Find the distance covered by it.

What is a thick cuticle layer in drought conditions?

All atoms of an element have the same?

Select the correct answer. When waves travel through water, why do the moving water particles continue to return to their starting position? A: Waves transfer matter, but not energy. B:Waves transfer both matter and energy.

Daniel has a sample of pure copper. It's mass is 89.6 grams (g) and it's volume is 10 cubic centimeters (cm3) what is the density of the sample

Why do scientists believe the universe is still expanding