How do modern scientists describe the make up of matter

If the torque on an object adds up to zero A) the forces on it also add up to zero. B) the object is at rest.

A plane traveling at a constant speed is able to travel 600 miles in 5 hours. how fast was the plane flying?

A box exerts 10,000 Pa of pressure on the ground. If the box weighs 1000 N, how much area is in contact with the ground? 10,000,000 m2 0.1 m2 11,000 m2 10 m2

Name the type of circulation in a region where seasonal reversals in prevailing winds cause wet summers and relatively dry winters.

What is the order of the types of nuclear reaction from lowest to highest energy?

An air compressor is a device that pumps air particles into a tank. A particular air compressor adds air particles to its tank until the particle density of the inside air is 20 times that of the outside air.

Why is the thickness greater for the bass strings of a guitar than for the treble strings?

An atom of helium and one of argon are singly ionized - one electron is removed from each. The two ions are then accelerated from rest by the electric field between two plates with a potential difference of 150 V.

Comparing and contrasting ionic and covalent bonds?

The difference between the speed of sound n air at 0°C and the speed of sound in air at 20°c is that ... A. Cooler air molecules move more slowly and respond less readily to the energy of a sound wave. B.