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Lilit [14]
3 years ago
14

Each water molecule is joined to _____ other water molecules by ____ bonds.

Physics
2 answers:
levacccp [35]3 years ago
8 0

Answer:

D) four ... hydrogen

Explanation:

Assoli18 [71]3 years ago
5 0

Answer:

4 and hydrogen

Explanation:

Each water molecule is joined to 4 other water molecules by hydrogen bonds.

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gtnhenbr [62]
70x3=210 mph... its that easy
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3 years ago
A falling object accelerates from -10.0 m/s to -30.0 m/s. how much time does it take?
Zepler [3.9K]

Answer:

2.04 s

Explanation:

v = at + v₀

(-30.0 m/s) = (-9.8 m/s²) t + (-10.0 m/s)

t = 2.04 s

8 0
3 years ago
Read 2 more answers
A system gains 767 kJ of heat, resulting in a change in internal energy of the system equal to +151 kJ. How much work is done?
Crazy boy [7]

Answer:

The work done on the system is -616 kJ

Explanation:

Given;

Quantity of heat absorbed by the system, Q = 767 kJ

change in the internal energy of the system, ΔU = +151 kJ

Apply the first law of thermodynamics;

ΔU = W + Q

Where;

ΔU  is the change in internal energy

W is the work done

Q is the heat gained

W = ΔU  - Q

W = 151 - 767

W = -616 kJ (The negative sign indicates that the work is done on the system)

Therefore, the work done on the system is -616 kJ

6 0
3 years ago
How long would it take for a car to travel 200 km if it has an average speed of 55 km hr?
Rainbow [258]

Answer:

3.63 hours or 3 and 37.5 minutes

Explanation:

200/55

Hope this helps :)

6 0
3 years ago
Its mass is 20 grams, and its density is 7.87 g/cm3. What’s the larger cube’s volume?
Alik [6]
Volume = mass / density
Volume = 20 / 7.87
Volume = 2.54 (2 s.f)
3 0
3 years ago
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