How much heat is needed to melt 2.5 kg of lead? The latent heat of fusion for lead is 5.85 Kcal/kg. The latent heat of vaporization of lead is 20.8 kcal/kg

Which condition is a neuron in when the outside of the neuron has a net positive charge and the inside has a net negative charge?. Threshold. Action potential. Resting potential

What has more momentum a heavy truck or a moving skateboard?

A bowling ball at rest is in equilibrium. Is the ball in equilibrium when it moves at constant speed in a straight-line path?

wo slightly out of tune instruments will create beats when the same note is played. This is a pattern of louder and softer sounds. A piano tuner uses this method to tune a piano. When two waves overlap, they each act as if the other is not there.

What will happen as the object drives away adding more and more distance between the waves as they reach the listener?

How do you say scuba dive in spanish

a boy hears the echo of his own voice from a distance hill after 0.8 seconds. If the speed of sound in air is 340m/s, calculate the distance of the hill from the boy.

Which of the following are found in plant cells buh not animal cells?

The diagram shows the field lines near the poles, X and Y, of two magnets Based on the field lines, what are the poles of the magnets? O X: north Y south X: south Y north X north Y north Х Y X south Y south

Why is it safe to watch an eclipse of the Moon but not an eclipse of the Sun