1 be heard. 2. true. 3 responsible
<span>1. Density is the mass of a substance divided by its volume. D= m/v
2.
To measure the volume of an irregular object you can fill a container with water and submerge the item. You would then measure the volume of water that was displaced by the obect.
3. D = m/v so m = 10.00 grams and v = 15.625 cm3
D= 10.00 grams/15.625 cm3 = 0.64 g/cm3</span>
Answer:
in controlled experiment an independent variable is systematically manupulated and dependent variable is measured ; any extraneous variables are controlled
Symptoms of a heart stroke are:
<span>~Face Dropping
~Chest discomfort (uncomfortable chest pressure, squeezing, fullness or pain, burning or heaviness)
~Discomfort in other areas of the upper body (neck, jaw, shoulder, arms, back)
~Shortness of breath
~Sweating
~Nausea
<span>Light-headedness</span></span>
