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bogdanovich [222]
3 years ago
9

A heavy textbook and a QOD journal sit on the edge of your desk. Which has more gravitational potential energy?

Chemistry
1 answer:
fenix001 [56]3 years ago
4 0
The textbook Would most likely have more gravitational potential energy because it is heavier. Things that are heavier have a larger gravitational pull and are pulled to the earth faster
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I really need the answers please!
krek1111 [17]

1) D = 13.6 g / mL

2)ethyl alcohol weighs 158g

3)ρ _copper = 8.9 g cm^{3}

Explanation:

1)

D = m / V

=306.0 g / 22.5 mL

D= 13.6 g / mL

2)

density = mass / volume

mass = density × volume  

=0.789g /ml × 200.0 ml

M=158g

Ethyl alcohol weighs 158g

3)

ρ  (density) = Mass  / Volume

ρ _copper = 1896 g / 8.4cm × 5.5cm × 4.6cm

= 1896g / 212.5 cm^{3}

ρ _copper=8.9 g cm^{3}

4 0
3 years ago
Identify the statement that correctly describes light and how it travels? (2 points)
schepotkina [342]

Light does not travel at a constant speed in a vacuum, compared to in air, because the light is being absorbed by atoms and molecules in the air. But light does travel at a constant speed in a vacuum.
So I agree with A
All that talk about moving forward is irrelevant (I think)
4 0
3 years ago
Read 2 more answers
Mention the four characterstics of warm blooded animals.<br>​
Igoryamba

Answer:

The four characrteristics of warm blooded animals are÷

Explanation:

i=They can keep its body temperature the same no matter what the outside temperature .

ii=They can maintain a constant body temperature.

iii=They obtain energy from food consumption.

iv=They maintain their body temperature higher than environment.

7 0
3 years ago
Read 2 more answers
How many moles of mercury(Hg) are in 1.30 *10.7 atoms or mercury
Svetach [21]
1 mole Hg --------------- 6.02x10²³ atoms
?? moles Hg ------------ 1.30x10⁷ atoms

(1.30x10⁷) x 1 / 6.02x10²³ => 2.159x10⁻¹⁷ moles 
5 0
3 years ago
A balloon is filled with 35.0 L of helium in the morning when the temperature is 35.00 oC.
nexus9112 [7]

Answer: V = 33.9 L

Explanation: We will use Charles Law to solve for the new volume.

Charles Law is expressed in the following formula. Temperatures must be converted in Kelvin.

V1 / T1 = V2 / T2 then derive for V2

V2 = V1 T2 / T1

= 35 L ( 308 K ) / 318 K

= 33.9 L

5 0
3 years ago
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