How much heat would be needed to completely evaporate 43.5 g of boiling water at a temperature of 100 °C? Express your answer in units of joules.

Which of these terms can describe a mineral's luster? Select all that apply. A) dull B) waxy C) brilliant D) resinous

A skydiver jumps from a helicopter hovering at high altitude. if there were no air resistance, how fast would she be falling 12s after jumping?

What are the two forces that keep a pendulum swinging?

Can you convert 80 mg to kg

This element has an atomic number that is double the atomic number of silicon

On a spring break vacation you decide to visit the grand canyon near flagstaff, arizona. then you head south to visit some friends in phoenix, arizona. while on the drive you notice that the temperature is increasing along the route.

An object weighing 1.840 kg has a volume of 0.0015 m3. What is the density of the object in g/cm3?

What is the purpose of cooking using sunlight?

Two planets of the same mass are observed. Which of the following distances between the two planets would result in the least gravitational attraction? A. 90 light years B. 80 light years C. 60 light years D. 50 light years

How would you make a structure stronger?