PHYSICS MIDDLE SCHOOL

Does heating a cup of
Water allow it to dissolve more sugar ? Constant

Answers

Answer 1
Answer:

Answer:

Explanation:

Yes
Answer 2
Answer:

Answer:

yes

Explanation:

Because the heat allows the the sugar to dissolve easily and stirring it causes it to dissolve even more

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Which one of the following is not a safety rule in the laboratory. a. To sit on a stool
b. To follow instructions
c. To wear shoes with hard soles
d. Handling apparatus​

Answers

Answer:

C. To wear shoes with hard soles​

Explanation:

Why do people delte your answer or the question on here i is new so idk can someone plz help?

Answers

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Water changes shape to fill the shape of its container. what is the best explanation for this ?

Answers

The answer would be that it is a liquid. It does not have a definite shape. That is why is takes the shape of what ever container it fits into. 
Liquids don't have a definite shape so that means it does not take shape of its contaner but, solids do for example when you put water in a bown and freeze it up then it will stay there. Hope i helped :D

An Atwood machine is constructed using twowheels (with the masses concentrated at the
rims). The left wheel has a mass of 2.5 kg and
radius 22.2 cm. The right wheel has a mass
of 2.7 kg and radius 27.49 cm. The hanging
mass on the left is 1.59 kg and on the right
1.24 kg
m
mz
What is the acceleration of the system?
The acceleration of gravity is 9.8 m/s.
Answer in units of m/s.

Answers

Left:
2*g-TL=2*aL
aL=α*0.231
therefore
TL=2*(g-α*0.231)

Right:

TR-1.4*g=4*aR
aR=α*0.272
therefore
TR=1.4*(g+α*0.272)

Wheels:
TL*0.231-TR*0.272=
(2*0.231^2+2.3*0.272^2)*α

combine and solve for α

What is linear momentum?

Answers

Linear momentum is a vector quantity defined as the product of an object’s mass and it's velocity

Write the alignment of the Moon the Sun and the Earth causes a spring tide

Answers

it causes spring tide because the sun and the moon are though and it make rin

Spring tides occur when the Earth, sun and moon are aligned. Despite its name spring tides have nothing to do with the Spring season. It was derived from the concept of "springing-forth" . They occur at twice each lunar month, bringing higher tides during high tide and lower tides during low tide. 
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