Which of the following elements would you expect to be most reactive, based on the number of valence electrons it has? A. Magnesium (Mg) B. Sodium (Na) C. Aluminum (Al) D. Sulfur (S)

Sound waves are : a) Transverse and longitudinal b) Transverse c) Longitudinal

Why is it easier to change meters to centimeters than it is changing yards to feet?

A bike rider pedals with constant acceleration to reach a velocity of 7.5 (vf) m/s over a time of 4.5 s (t). during the period of acceleration, the bike's displacement is 19 m (d). what was the initial velocity of the bike?

Who agreed with the hellocentric theory and got inprisoned for his studys

What causes objects to fall on earth and what is the rate at which this occurs

Which of the following is an example of a velocity? O A. 12 m/s O B. 45 km/hr south O C. 55 km/hr D. - 5 m/s2 east

What was the total weight (lbf) of chocolate in the vat? the specific gravity of chocolate is approximately 1.24?

You are in the lab and are given two rods set up so that the top rod is directly above the bottom one. The two straight rods 50-cm long are separated by a distance of 1.5-mm each with 15 A of current passing through them.

What is the explanation for feather beds being warm

A student wearing frictionless in-line skates on a horizontal surface is pushed by a friend with a constant force of 47 N. How far must the student be pushed, starting from rest, so that her final kinetic energy is 354 J?