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Vlada [557]
3 years ago
15

Sarah wanted to find out if temperature has an effect on the growth of bread mold. She grew the mold in nine Petri dishes contai

ning the same amount and type of nutrients. Three were kept at 0 C, three were kept at 90 C, and three were kept at room temperature, 27 C. The containers were examined and the growth of the bread mold was recorded each Friday for five weeks. The dependent or responding variable is:
Physics
1 answer:
MAXImum [283]3 years ago
7 0

Answer:

Growth of Bread Mold

Explanation:

The controlled variables are the type of containers used and also the different temperatures.

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6X-6=9<br><br> Solve for X<br><br> Round to TWO decimal places
Brums [2.3K]

Answer:

X=2.50

Explanation:

6x-6=9

6x= 9+6

X=15/6

X= 2.50

8 0
3 years ago
A race car travels 40 m/s around a banked (45° with the horizontal) circular (radius = 0.20 km) track. What is the magnitude of
OLEGan [10]

Answer:

c)F_{net} = 0.640 kN

Explanation:

As we know that resultant force is the net force that is acting on the system

As per Newton's II law we know that net force is product of mass and acceleration

so we will have

F_{net} = ma

here we know

m = 80 kg

for circular motion acceleration is given as

a_c = \frac{v^2}{R}

a_c = \frac{40^2}{200} = 8 m/s^2

now we have

F_{net} = 80 \times 8

F_{net} = 640 N

F_{net} = 0.640 kN

7 0
3 years ago
Which type of light wave has the highest energy? which has the least amount of energy
devlian [24]

Answer:

Red has the lowest energy and violet the highest. Beyond red and violet are many other kinds of light our human eyes can't see, much like there are sounds our ears can't hear. On one end of the electromagnetic spectrum are radio waves, which have wavelengths billions of times longer than those of visible light.

Explanation:

6 0
3 years ago
(EARTH SPACE SCIENCE QUESTION)
Sergeeva-Olga [200]

*may be egg shaped

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*has almost no gas or dust between stars

I literally just took notes on elliptical galaxies a week ago wow

8 0
3 years ago
Read 2 more answers
A helicopter and a jet airplane must work against gravity in order to fly. Which one flys faster
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Im pretty sure the jet airplane is faster
3 0
4 years ago
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