The total number of protons plus neutrons in an atom of ⁴⁵₂₀Ca is

A.) 20

B.) 25

C.) 45

D.) 65

What cosmic accident is believed to form many irregularly shaped galaxies?

Select the correct answer. Which of the following is an example of kinetic energy? On a boy resting on a park bench OB a book sitting on a shelf Oc a rubber band stretched as far as it can go a swing moving back and forth Reset Next

The region around a magnet that exerts magnetic force is called an

Which type of warehouse provides outsourced warehousing services? O A. e-commerce distribution center O B. perishable warehouse OC. service parts distribution center BP OD. 3PL warehouse

A kayak races 100 meters in 50 seconds. what is it's speed?

What career has to do with one of these listed ... fossil fuels, nuclear energy, biomass, hydropower, solar energy, geothermal energy, or wind energy.

An object is suspended from the ceiling with two wires that make an angle of 40° with the ceiling. The weight of the body is 150 N. What is the tension in each wire? 41.6 newtons 82.3 newtons 150 newtons 117 newtons

What is the value of 9682 when rounded to three significant figures

Why do atoms move at different speeds depending on wether they are liquids or solids

What are the arrangement of resistors in series