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jekas [21]
2 years ago
11

I will give 20 points and brainliest

Physics
2 answers:
ExtremeBDS [4]2 years ago
6 0
The answer is b because it’s right
Annette [7]2 years ago
3 0

Answer:

b and c

Explanation:

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Meg walks with a velocity of 0.9 m/s west. She does so while riding on a train that is traveling with a velocity of 2.7 m/s east
Shkiper50 [21]
<span>Velocities are vectors so we can add them!

Let's let +x be East and -x be West.

 -0.9 + 2.7 = 1.8
 
Since our answer is positive that means East so the answer is C.</span>
6 0
3 years ago
Precision is how close a series of measurements are to ______
Leya [2.2K]

Answer:

Accuracy is how close a measured value is to an accepted value. <u>Precision is how close measurements are to one another.</u> To make measurements, you have to evaluate both the accuracy and the precision to get a correct value.

3 0
2 years ago
A tank with a flat bottom is filled with water to a height of 4 meters. What is the pressure at any point at the bottom of the t
Mariulka [41]

<u>Answer</u>

C.39.2 kPa


<u>Explanation</u>

The pressure in liquids depend on the depth or what we call the liquid column(h), the density of the liquid(σ) and the the acceleration due to gravity(g).

h = 4.00 m

σ = 1000 Kg/m³

g = 9.8m/s²


Pressure Is given by;

P = σgh

= 1000 × 9.8 × 4

= 39200 Pa

=39.2 KPa

8 0
3 years ago
Read 2 more answers
Distinguish between speed and velocity?<br>atleast 4 point should write​
Sergio [31]

Answer:

mark me as brainliest ❤️

4 0
3 years ago
How do you calculate the following:<br> Final Velocity?<br> Acceleration?<br> and Force?
kicyunya [14]
Wait like the equations, or is there an actual question?

Equations are

Final velocity (Vf) = Initial velocity (Vi) + Acceleration (a) x Time (t)
Acceleration (a) = (Final velocity [Vf] - initial velocity [Vi]) divided by Time (t)
Force (f) = Mass (m) x Acceleration (a)

(Short version)

Vf = Vi + a(t)
a = (Vf - Vi) divided by t
F = m x a
6 0
3 years ago
Read 2 more answers
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