Isotopes of elements have different:

A.) atomic masses

B.) atomic numbers

C.) electron shells

D.) numbers of protons

What is the lateral surface area of a cylinder with height of 7 m and a base diameter of 4 m (to the nearest whole number) ?

You eat a large meal and then hike up a hill. what kind of energy transformation is your body performing?

The velocity vector of an object with a centripetal acceleration is never tangent to the circular path. Question 4 options: True False

Light-rail passenger trains that provide transportation within andchameleons catch insects with their tongues, which they can rapidly extend to great lengths.

Definition of termperature in thermodynamics

A small rock remains at rest in outer space while an astronaut pushes horizontally on it with a force of 20 N. Which of the following must be true? A. There is another horizontal force acting on the rock. B.

If an igneous rock has very large crystals of minerals that you can see when looking at it, which type of igneous rock is it

You have a 60-foot roll of fencing and a large field. You want to make two paddocks by continuing the fencing down the middle of a rectangular enclosure. What are the dimensions of the largest such enclosure you can make?

Crystallization is a separation technique used to produce rock candy from a sugar solution. true or false

A car traveling in a straight line has a velocity of 3.79 m/s at some instant. After 5.4 s, its velocity is 11.9 m/s. What is its average acceleration in this time interval? Answer in units of m/s 2