How much of the total surface of the Moon is illuminated by the Sun when it is at crescent phase

Explain

Why on earth the sky is in blue colour but it is black on the moon?

How does force do positive work on an object?

A small amber bead with a mass of 12.6 g and a charge of - 0.646 µC is suspended in equilibrium above the center of a large, horizontal sheet of glass that has a uniform charge density on its surface.

As a pot of water boils, the temperature of the water dropsrisesremains the same as the water level drops

Example of a single displacement reaction is

A. A PH202 student lives next to a construction site and sees a crane with a wrecking ball demolish the building next door. The wrecking ball swings along the wall between her house and the neighbor's house.

Sometimes when you are training for event you may notice a decrease in improvement in level out of performance true or false

Two sailboats leave a harbor in the bahamas at the same time. the first sails at 23 mph in a direction 330°. the second sails at 34 mph in a direction 190°.

What conclusion can be drawn from the statement that an element has high electron affinity, high electronegativity, and a high ionization energy? A) The element is most likely from Group 1A or 2A and in period 1 or 2.

When a cyclist rides past you on the street, this is an example of