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just olya [345]
3 years ago
10

Which action can be explained by physics

Physics
2 answers:
Digiron [165]3 years ago
8 0
The pressure of blood exerted on the inner walls of the veins
Serjik [45]3 years ago
7 0
Walking to school. Hope this helps!
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Explain why a law is accepted as fact, but a theory is not.
melamori03 [73]
Because a law is proven, a theory is just an explanation that may not be correct.

3 0
3 years ago
Read 2 more answers
A 1.25 x 10-4 C charge is moving5200 m/s at 37.0° to a magnetic fieldof 8.49 x 10-4 T. What is the magneticforce on the charge?
juin [17]

0.0003321 Newtons

Explanation

We are given the charge, its velocity, and the magnetic field strength and direction. We can thus use the equation to find the force

\begin{gathered} F=qvBsinθ \\ where\text{ F is the magnetic force} \\ q\text{ is the charge} \\ v\text{ is the velocity of the charge} \\ Bis\text{ the magnetic field} \\ \theta\text{ is the angle} \end{gathered}

so

Step 1

Let

\begin{gathered} q=1.25*10^{-4\text{ }}C \\ v=5200\frac{m}{s} \\ \theta=37\text{ \degree} \\ B=8.49*10^{-4}T \end{gathered}

now, replace

\begin{gathered} F=qvBs\imaginaryI n\theta \\ F=1.25*10^{-4}\text{ C*5200 }\frac{m}{s}*8.49*10^{-4}Tsin(37) \\ F=0.0003321\text{ Newtons} \\  \end{gathered}

so, the answer is

0.0003321 Newtons

I hope this helps you

7 0
1 year ago
Can an object be in mechanical equilibrium when only a single force acts on it? explain.
elena-s [515]
No because if there is a force, there is acceleration which means the object is getting faster.
3 0
3 years ago
The speed of light in ________ is about 230 million m/s.
Vladimir [108]

Answer:

Water

Explanation:

The speed of light in water is about 230 million m/s.

8 0
3 years ago
A ball is dropped from the rest from a high window of a tall building and called for 4 seconds. Neglecting air resistance, the f
diamong [38]

Answer:

-39.2m/s

Explanation:

Given that :

t = 4secs

g = -9.8m/s^2

v = ?

u = 0m/s ( since it was at rest )

V = u +at............. 1

Where v is the final velocity

a = -g = -9.8m/s^2 since the ball was dropped from a height which will eventually make it move against gravity

t = 4secs

Substitute the values into 1

v = 0 - 9.8×4

v = -39.2m/s

3 0
3 years ago
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