Which two particles are found in the center of an atom?

Reactis

electrons and ions

protons and neutrons

protons and electrons

electrons and neutrons

The atmosphere is full of nitrogen and oxygen. These are

A student weighs 400 Newtons climbs a 3 meter ladder in 4 seconds how much work is the student do

What two minerals would be most useful as grains on sandpaper

When driving at night with other traffic, you should not look directly at oncoming headlights?

In a thunderstorm, the air must be ionized by a high voltage before a conducting path for a lightning bolt can be created. an electric field of about 1.0 * 106 v/m is required to ionize dry air.

To provide some perspective on the dimensions of atomic defects, consider a metal specimen that has a dislocation density of 105 mm-2. Suppose that all the dislocations in 1000 mm3 (1 cm3) were somehow removed and linked end to end.

Some amount of ideal gas with internal energy U and initial temperature 1000C was compressed to half of volume meanwhile absolute pressure inside of a container increased twice.

How does time affect soil

Two identical blocks with mass 5.0 kg each are connected to the opposite ends of a compressed spring. The blocks initially slide together on a frictionless surface with velocity 2 m/s to the right. The spring is then released by remote control.

A dropped jar of peanut butter shatters on the floor. What type of collision is this?