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serg [7]
2 years ago
6

2. A mixture of mercury and copper is an example of

Physics
2 answers:
Vanyuwa [196]2 years ago
6 0

b

Explanation:

option b would be the answer

Olin [163]2 years ago
4 0

Answer:

b

Explanation:

liquid and solid

hope that helps :)

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What do the subscript in the formula for ethane repersent
Karolina [17]
The formula for ethane is C2H6. (the 2 and 6 are supposed to be subscripts) they show the number of atoms per element. So there are two carbon atoms and six hydrogen atoms in ethane. The subscript in a chemical formula represents the amount of that atom in that compound's formula. <span>In chemistry, no subscript indicates 1 of that particular atom. HCl contains 1 atom of hydrogen and 1 atom of chlorine, whereas H20 contains 2 atoms of hydrogen and 1 atom of oxygen.It should be noted, however that this does not necessarily hold true for empiracle formulas, since these have been reduced to the simplest whole number ratio and do not necessarily reflect the number of each element present in an actual molecule. 

I hope this helps you! Good luck :)</span>
3 0
3 years ago
What is the acceleration of a car that is going at a steady speed of 60 mph?
PilotLPTM [1.2K]

Answer:

0

Explanation: you are only accelerating if you are slowing down, speeding up, or changing direction

8 0
3 years ago
A ball was rolling downhill at 2 m/s. After 5s, it was rolling at 90 m/s. What is its acceleration?
olga55 [171]

Answer:

17.6 m/s²

Explanation:

Given:

v_{f} = 90 m/s (final velocity)

v_{i} = 2 m/s (initial velocity)

Δt = 5s (change in time)

The formula for acceleration is:

a_{avg} = Δv / Δt

We can find Δv by doing

Δv = v_{f} - v_{i}

Replace the values

Δv = 90m/s - 2m/s

Δv= 88m/s

Using the equation from earlier, we can find the acceleration by dividing the average velocity by time.

a_{avg} = Δv / Δt

a_{avg} = \frac{88m/s}{5/s}

acceleration = 17.6 m/s^{2}

4 0
2 years ago
What is meant by the statement "Motion is relativel"?
aleksklad [387]

Answer:

when an object move from its place is called an mation

4 0
3 years ago
A hammer falls off the top roof and strikes the ground with a certain kinetic energy. If it fell from a roof twice as tall how w
Akimi4 [234]

The kinetic energy with which the hammer strikes the ground
is exactly the potential energy it had at the height from which it fell. 

Potential energy is (mass) x (gravity) x (height) .... directly proportional
to height.

Starting from double the height, it starts with double the potential
energy, and it reaches the bottom with double the kinetic energy.

8 0
3 years ago
Read 2 more answers
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