How many atoms of each element are in the chemical formula P2O5?

2 phosphorus and 5 oxygen

5 phosphorus and 2 oxygen

1 phosphorus and 5 oxygen

2 phosphorus and 1 oxygen

Which one of the following accurately describes the force of gravity

A 2 kilogram cat is resting on top of a bookshelf that is 1 meters high. What is the cat's gravitational potential energy relative to the floor?

What nuclear physics means?

The earth pulls on the apple, and the apple pulls on the earth. This idea is represented by Newton's ___ Law of Motion. 1st, 2nd or 3rd?

The humber bridge in england has the world's longest single span, 1410 m. calculate the change in length of the steel deck of the span when the temperature increases from - 3.0 ∘c to 18.5 ∘c.

You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30 m/s. Calculate the energy.

Three ideal polarizing filters are stacked, with the polarizing axis of the second and third filters at 21 degrees and 61 degrees, respectively, to that of the first. If unpolarized light is incident on the stack, the light has intensity 60.

What does an electric current produce

A series circuit contains three 2 Ω resistors and a 6 Ω resistor. The current in each resistor is 4.0 A. What is the voltage of the battery in the circuit? 2.0 V 3.0 V 32 V 48 V

A solid metal ball and a hollow plastic ball of the same external radius are released from rest in a large vacuum chamber. When each has fallen 1 m, they both have the same?