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sdas [7]
3 years ago
7

True or False?

Physics
1 answer:
olga nikolaevna [1]3 years ago
6 0

Answer:

False

Explanation:

It is better to be logical when proving a point

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The ___ energy in a mechanical system is determined by adding the potential and kinetic enters together
Svetllana [295]

Answer:

A, total.

<em>The </em><em>total</em><em> energy in a mechanical system is determined by adding the potential and kinetic enters together.</em>

<em />

<u><em>i hope this helped at all.</em></u>

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4 0
3 years ago
What are three (3) things you can do before exercise or sports that will keep you safe?
zaharov [31]

Answer: Drink water, practice, do some light stretches

Explanation:

3 0
3 years ago
I have multiple questions!
UNO [17]

I'm not sure about the rest but for question 2:

A theory is an attempt to come up with a big picture of all we know so far. It also drives future research as people do experiments to see if what the theory predicts actually happens. When experiments don’t support the theory, you have to change the theory and try again. That’s how science works. We come up with a “best guess” (theory), and then do research to test it’s accuracy. As we discover contradictions, we adjust the theory to take those into account, and then start testing the validity of the new theory.

3 0
3 years ago
Tell me how the temperatures in the tropics, temperate zones, and polar zones are similar and how they are different.
Oksi-84 [34.3K]

Answer:

Hewo My Lovelys!!

Answers are down below!!

Explanation:

The climate region near the equator with warm air masses is known as tropical. In tropical and polar climates, the weather is consistent throughout the year. In temperate zones, the weather is affected by both warm and cold air masses at different times during the year, so the weather changes with the seasons.

Hope this helps!! =3

Have a great day, evening, or night!! <3

6 0
3 years ago
1 - A submarine has a circular porthole with a radius of 0.10 m. If a force of more than 2x106 N is applied, the porthole will f
S_A_V [24]

In order to solve this problem, it is necessary to apply the concepts related to the Pressure according to the Force and the Area as well as to the pressure depending on the density, gravity and height.

In the first instance we know that the pressure can be defined as

P = \frac{F}{A}

Where

F= Force

A =  Mass

In the second instance the pressure can also be defined as

P = \rho gh

Where,

\rho=Density of Fluid at this case Water

g = Gravitational Acceleration

h = Height

If we develop the problem to find the pressure then,

P = \frac{F}{A}

P = \frac{F}{\pi r^2}

P = \frac{2*10^6}{\pi (0.1)^2}

P = 6.37*10^{7} Pa

Through the second equation we can find the depth to which it can be submerged,

P = \rho gh

Re-arrange to find h

h = \frac{P}{\rho g}

h = \frac{6.37*10^{7}}{1000*9.8}

h = 6499.4m

8 0
3 years ago
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