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Nadya [2.5K]
3 years ago
6

observational studies are identified by changes in sot variable while controlling other true or false

Physics
1 answer:
ikadub [295]3 years ago
3 0
This statement would be false.
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If u accomplished 10,000 newton meters of work how much work did you do in units of joules
Amiraneli [1.4K]
1.0 joule= 1.0 newtons × 1.0 meter = 1.0 newton × meter 

Work = 10 newtons × 5 meters = 50 newton × meter
 
3 0
4 years ago
A 10-gram aluminum cube absorbs 677 joules when its temperature is increased from 50°c to 125°
kotegsom [21]

Answer : The specific heat of aluminum is, 0.90J/g^oC

Solution : Given,

Heat absorbs  = 677 J

Mass of the substance = 10 g

Final temperature = 125^oC

Initial temperature = 50^oC

Formula used :

Q= m\times c\times \Delta T

or,

Q= m\times c\times (T_{final}-T_{initial})

Q = heat absorbs

m = mass of the substance

c = heat capacity of aluminium

T_{final} = final temperature

 T_{initial} = initial temperature

Now put all the given values in the above formula, we get the specific heat of aluminium.

677g= (10g)\times c\times (125-50)^oC

c=0.9026J/g^oC=0.90J/g^oC

Therefore, the specific heat of aluminum is, 0.90J/g^oC

7 0
3 years ago
Read 2 more answers
What would the American flag look like under a blue light?
nadezda [96]

Answer:

The flag will appear to be black.

Explanation:

This is because red is the only brighter color in the American flag, so when a blue light is shined, the red turns dark and then the flag looks just blank and black.

3 0
3 years ago
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Two planets have the same surface gravity, but planet b has twice the radius of planet
nevsk [136]
The formula for the acceleration due to gravity is:

a = Gm/r²
where
G is the universal gravitational constant = 6.6726 x 10⁻¹¹ N-m²/kg²
m is the mass of planet
r is the radius of planet

So, if they have the same a:

m₁/r₁² = m₂/r₂²
So, if m₁ = m and r₂ = 2r₁,
m/r₁² = m₂/(2r₁)²
m₂ = 4m

<em>Thus, the answer is D.</em>
8 0
4 years ago
HOW MANY LICKS DOES IT TAKE TO GET TO THE CENTER OF A TOOTSIE POP?​
Harman [31]
<h2>Answer:364 LICKS!</h2><h2 />

Explanation:

7 0
3 years ago
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