All categories

2 years ago

(I NEED THIS ANSWERED NOW PLEASE)

Physics

1 answer:

VMariaS [17]2 years ago

4 0

Answer:

Zeros that follow non-zero numbers and are also to the right of a decimal point are significant.

Explanation:

For example:

0.300 has 3 significant figures.

5.400 has 4 significant figures.

You might be interested in

It is not just lab chemicals but also common household substances that can be classified as acidic, basic, and neutral materials

Montano1993 [528]

Acidic: coffee, orange juice , soft drink, vinegar

Basic: Antacid, Baking soda, Detergent, Lye, Milk of Magnesia

Neutral: water, Sugar, Table salt.

Explanation:

Acidic substances have high concentration of hydrogen ions and have pH value less than 7. Basic substances have high concentration of hydroxide ions and have pH value more than 7. Neutral substance have pH value 7. The concentration oh hydrogen ions and hydroxide ions is equal.

Salt is formed when a acid reacts with base in a neutralization reaction. Different types of salt are formed depending upon the concentration of hydrogen and hydroxide ions. Neutral salt is formed when concentration of hydrogen ion is equal to concentration of hydroxide ions.

Coffee, orange juice , soft drink, vinegar are acidic substances. Antacid, Baking soda, Detergent, Lye, Milk of Magnesia. water, Sugar, Table salt are neutral substances.

6 0

3 years ago

A image formed in a plane mirror is larger than the object ture or false

Lesechka [4]

Answer:

false

Explanation:

8 0

2 years ago

Jacob is traveling at 5.00 m/s North. Jacob throws a ball with a velocity of 5.00 m/s South. Jacob throws the ball from a height

Nataly [62]

Answer:t=0.54 s

Explanation:

Given

Jacob is traveling 5 m/s in North direction

Jacob throw a ball with a in south direction with a velocity of 5 m/s

Ball is thrown in opposite direction of motion of car therefore it seems as if it is dropped from car as its net horizontal velocity is 5-5=0

Time taken by ball to reach ground

$s=ut+\frac{gt^2}{2}$

$1.45=0+\frac{9.81\times t^2}{2}$

$t^2=frac{2\times 1.45}{9.81}$

t=0.54 s

Motion of ball will be straight line

3 0

3 years ago

How is pressure and density related?

enyata [817]

Answer:

Density is directly proportional to pressure

Explanation:

As pressure increases (with constant temperature), density also increases.

Density is inversely proportional to temperature.

5 0

3 years ago

One of the basic rules of science is

adoni [48]

Geocentric means earth centered
So answer is C - the earth in no longer believed to be the center of the solar system

6 0

2 years ago