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kenny6666 [7]
3 years ago
8

A scientist fills a container with sea water. The container has dimensions 30 cm x 30 cm x 40 cm The density of sea water is 102

0 kg/mº. Calculate the mass of the sea water in the container.​
Physics
1 answer:
Gnoma [55]3 years ago
3 0

Answer:

30600kg

Explanation:

density=m/v make v subject of the formula

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The number 3 in hydrogen in NH33 is the
frosja888 [35]

Answer:

no of atoms

Explanation:

for each amonia molecule one nitrogen atom bind with 3 hydrogen atoms

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Evelyn learns that a sound wave can be recorded electronically as an analog signal or as a digital signal. She investigates thes
Lunna [17]

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can u help me with this too, i currently have it in an assignment and i dont know the answer

Explanation:

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3 years ago
Anissa slides down a playground slide sloped at 25o. The coefficient of kinetic friction between Anissa and the slide is 0.15. I
Keith_Richards [23]

Answer:5.62 m/s

Explanation:

Given

Inclination \theta =25^{\circ}

Coefficient of kinetic Friction \mu _k=0.15

mass of Anissa's m=55 kg

time interval t=2 s

acceleration of the system

a=g\sin \theta -\mu _kg\cos \theta

a=9.8\sin (25)-0.15\cdot 9.8\cos (25)

a=4.14-1.33=2.81 m/s^2

v=u+at

where v=Final Velocity

u=Initial Velocity

a=acceleration of system

t=time

v=0+2.81\times 2

v=5.62 m/s

4 0
3 years ago
A swimming pool is an example of an open system. The pool loses 10,500 J
zaharov [31]

Answer: A a decrease of 8000

Explanation: 10,500 - 2,500= 8000

8 0
4 years ago
Read 2 more answers
Give an example of a scientific hypothesis. Explain how you would test it, and how it could be falsified (proved untrue).
kaheart [24]

my hypothesis is that If you drop a piece of buttered toast, it will land butter side down.


I tested it by dropping 10 pieces of buttered toast off the table and noted on which side it landed


It could be falsified cause I just made all of this up. In essence, it's like flipping a coin, 50/50 chance so I could say that 5 landed butter up and 5 landed butter down.

8 0
3 years ago
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