An atom of element A has 39 protons. What would the element's atomic number be?

The product side of a chemical reaction is shown. → 7Ti2 (SO4) 3 Which number represents a coefficient? 2 3 4 7

A flowerpot that has a mass of 1.5 kg is sitting on a windowsill 30 meters from the ground. Is the energy of the flowerpot potential of kinetic? How much energy does the flowerpot have?

What is the function of DNA polymerase? A. jadding base pairs B.) correcting errors C.) both adding base pairs and correcting errors D.) neither adding base pairs nor correcting errors

A piece of putty moving with 1 unit of momentum strikes and sticks to a heavy bowling ball that is initially at rest. After the putty sticks to the ball, both are set in motion with a combined momentum that is A. less than 1 unit. B.

Jeremy pulled on the spring scale below. how could he decrease the force needed?

Why does lightning follow a jagged path

Helene a hiker starts at an elevation of 27 ft above sea level and descends 32ft during her hike to Basecamp which describes the elevation of base camp

Standing on the roof of a (42.0+A) m tall building, you throw a ball straight up with an initial speed of (14.5+B) m/s.

0.5 kg air hockey puck is initially at rest. What will it's kinetic energy be after a net force of. 8 N acts on it for a distance of 2 m

Coil springs are widely used in industry. Those used in scientific instruments must be manufactured to exhibit consistent performance. One important property of a spring is its force constant.