Which of these elements is least likely to react with other elements

A. calcium

B. Argon

C. sodium

D. Nitrogen

E. Oxygen

F. Chlorine

a particle with a charge of 5.5 x 10^-8 c is 3.5 cm from a particle with a charge of - 2.3 x10^-8 c. the potential energy of this two particle system relative to the potential energy at infinite separation is:

The impulse given to a ball with mass of 4 kg is 16 N s. If the ball starts from rest, what is its final velocity?

Two asteroids of equal mass in the asteroid belt between mars and jupiter collide with a glancing blow. asteroid a, which was initially traveling at va1 = 40.0 m/s with respect to an inertial frame in which asteroid b was at rest, is deflected 30.

How many yards are there in 10 meters? (1m = 3.28 ft)

Most asteroids are found between the orbits of neptune and uranus ture or false

What does a velocity vs time graph look like for constant velocity if the speed is 2m/s. And the time is not given.

An electron and a proton, starting from rest, are accelerated through an electric potential difference of the same magnitude. in the process, the electron acquires a speed ve, while the proton acquires a speed vp. find the ratio ve/vp.

Why water is matter? what is the reason

Restate newton's first law in terms of acceleratin

What step precedes the onset of hydrogen fusion in a star?