An element's atomic number is 38. How many protons would an atom of this element have?

If a puddle of water is frozen, do the particles in the ice have kinetic energy? Explain.

A submarine begins ascending to the surface of the ocean. It experiences an overall acceleration of 1.7m/s^2 for the first 5s. What is it's velocity after 3.2 s?

How would i solve for force when there are multiple accelerations?

If there is 8 g of a substance before a physical change, how much will there be afterwards? 0g 4g 8g 16g

Which of the following solid fuels has the highest heating value? A. Wood B. Coke C. Bituminous coal D. Lignite

A swimming pool has the dimensions of 10 meters, 5 meters, and 1 meter. What is the pool's volume? 50 m 50 m3 50 m2 25 m3

A child pushes horizontally on a box of mass m which moves with constant speed v across a horizontal floor. The coefficient of friction between the box and the floor is μ. At what rate does the child do work on the box?

What two qauntities must be known to calculate the density of a sample of matter

An element's atomic number is 38. How many protons would an atom of this element have?

What's are some forms of chemical energy