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Anettt [7]
4 years ago
9

Which of the following statements are true?

Physics
2 answers:
Verizon [17]4 years ago
8 0
'B' and 'C' are both true.
e-lub [12.9K]4 years ago
8 0
B. Energy as heat flows from a higher temperature to a lower temperature.
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A car travles a distance of 540km in 6 hours. What speed did it travel at?
Tju [1.3M]
Simply,
To figure out the speed the car traveled to get 540km from point A in 6 hours, You’d have to solve 540 divided by 6.
540 divided by 6 = 90

So the answer would be 90km per hour,
Assuming you want the answer in km.
4 0
3 years ago
Which scenarios are examples of physical change?​
Oxana [17]

Answer:

For example: Freezing, boiling, are physical

Explanation:

3 0
4 years ago
Read 2 more answers
An unbalanced force of 20 N is applied to a 4.0 kg mass at rest. What is the
inna [77]

Answer:

<h2>5 m/s²</h2>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

f is the force

m is the mass

We have

a =  \frac{20}{4}  = 5 \\

We have the final answer as

<h3>5 m/s²</h3>

Hope this helps you

5 0
3 years ago
4. For the following questions, use a periodic table and your atomic calculations to find the unknown information about each iso
natita [175]
The answer is 7 (its like the only question thats easy so far lol)
4 0
3 years ago
A silver bar 0.125 meter long is subjected to a temperature change from 200°C to 100°C. What will be the length of the bar after
Delicious77 [7]
\Delta L=  \alpha L_0 (T_f-T_i)

= (18 x 10^-6 /°C)(0.125 m)(100° C - 200 °C)

= -0.00225 m

New length = L + ΔL
= 1.25 m + (-0.00225 m)
= 1.248

D
5 0
3 years ago
Read 2 more answers
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