Science

How to Questions and Answers About Science

At high tide, the average depth of water in a harbor is 24m, and at low tide the average depth is 6m. The tide?

At high tide, the average depth of water in a harbor is 24m, and at low tide the average depth is 6m. The tides in the harbor complete one cycle approximately every 12 hours. Write a sine function that relates the depth of the water in the harbor, y, to the time, t, in hours,…

what would happen to them if it were 40 degrees lower?

im doing a bio project and one of the questions is what would happen to the plants if the sahara desert dropped 40 degrees farenheit. here is the list of plants im using (African Welwitchsia, African Peyote Cactus, Eragrostis, Date Palm, Thyme, Magaria, and Olive Trees) what would happen to them?

does the amount of nutrients supplied affect bacteria numbers?

I know more nutrients increase the speed bacterias grow, but under the same condition but with more nutrients, will bacterias numbers increase more or stay the same just with greater speed?

why do moose lose their antlers?

why do moose lose their antlers?

How do I magnetize a coin?

This is a canadian coin… I am canadian!!

How big is a mole of a substance?

What can be made to represent the size of a mole (6.02*10^23)? What can it be related to? All suggestions welcome, thanks

PHYSICS!! help please?

On a summer day in Houston,  the temperature is 35°C and  the relative humidity is 75%.   (a) What is the humidity?  (b) To what temperature could  the air be cooled before condensation  would start to take place?  (i.e. what is the dew point?) 

Why are rates of colon cancer and type 2 diabetes so high in north america?

North Americans have among the highest rates of colon cancer in the world. Rates of type 2 diabetes and cardiovascular disease are also among the highest in the world. Give two reasons why these rates are so high, and explain how they could be reduced.

Measuring electricity HELP ASAP :D?

a) E= 1.2 kJ =________J P= 75W t= ? b) E=55J P= ? t= 2.25 hrs=______s c) E=? P=200 MW=_____W t=0.5hrs=______s CONVERT FIRST TO THE UNIT WITH NO PREFIX I do know the formulas for each problem but I don’t know how to convert the units

the biggest problem in the world for the future is global warming, how has it evolved to be such a problem?

the biggest problem in the world for the future is global warming, how has it evolved to be such a problem?