How much energy is wasted if a 100 W device is left on for 20 hours

How much heat is required to heat 0.1 g of ∆hvap = 2260 j/g ∆h = 340j/g fus iceat-30ctosteamat100c? use the approximate values?

is it true that parallel worlds exists? if yes or no, give proper reasons and proof. brainliest to the best

Give two reasons why circular water waves decrease in amplitude

True or false In longitudinal waves, the medium moves parallel to the direction of energy transport.

The term "radiation" refers to hot materials inside the Earth rising towards Earth's surface, cooling, and sinking back down.

An unknown solution has a pH of 8. How would you classify this solution? A) The substance is an acid. B) The substance is a base. C) There is not enough information to answer the question.

What is the most abundant element in the universe? A. helium B. hydrogen C. carbon

A bee flies at a constant rate of 5 ms until it notices a flower. It then comes to rest in 5 seconds. Find the acceleration of the bee if a = ΔvΔt

When is there zero net force on an object?

The bending of light when it travels from one material to another is called deflection refraction reflection correction