If light needs matter, how doe it move through space? this is my first question.

What information about an element is most crucial for locating that element in the periodic table?

A school bus full of students drives down the road. Because it is moving, it has 1. potential energy because it has the ability to take the students to school. 2. kinetic energy because it has the ability to take the students to school. 3.

Which of the following is written correctly in scientific notation? 52 x 103 6.8 x 94 23.7 x 10-3 8.01 x 10-5

You no longer feel your clothes against your skin after you have been wearing them for a while. What explains this?

Researchers who studied acupuncture in mice discovered that inserting an acupuncture needle deactivated pain-suppressing receptors.

What acceleration is produced when a 12-N force is exerted on a 3-kg object?

Question 17 options: A 71.8 kg man goes from an area where the acceleration due to gravity is 9.79 m/s2 to an area where the acceleration due to gravity is 9.82 m/s2.

A pair of scissors is a complex machine. What are the simple machines you need, to make a pair of scissors?

The average car today has a mass of 1510 kg, and when starting from rest, can accelerate to 26.8 m/s in 6.10 seconds. what force, in newtons, is accelerating the car?

A box of books with mass 58 kg rests on the level floor of the campus bookstore. The floor is freshly waxed and has negligible friction. A bookstore worker applies a constant horizontal force with magnitude 25 N to the box.