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4 years ago

I WILL MARK BRAINLIEST FOR THE FIRST PERSON TO ANSWER THESE QUESTIONS!!

Physics

1 answer:

Charra [1.4K]4 years ago

6 0

Answer:

1.A.) woman whose father was a United States citizen

2. A.) demonstrate the ability to read, write, and speak English

C.) pass a citizenship exam that tests one’s understanding of U.S. civics

D.) lawfully reside in the United States for at least five years

Explanation:

When you are born to at least one whom was a U.S citizen at time of birth then you automatically acquire U.S citizenship through acquisition process.This is not affected by the place of your birth maybe in the U.S or in another country.This claim is also true for foreign born adoptees to the United States.

A foreign born individual who is not automatically entitled to the United States citizenship can obtain this state through the naturalization procedure.It involves fulfilling the naturalization requirements such as being of the age 18 and above, being a permanent residence of the U.S for at least 5 years, being able to read, write and speak English, having basic knowledge of the U.S civics understanding, and but not least to being of good moral character.

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the pilot of a new stealth helicopter which has a mass of 15000 kg and was traveling 180 m / s accelerated to 250 m / s in six s

MariettaO [177]

Answer:

pf = 3750000 kg.m/s

F = 175000 N

Explanation:

Constant Acceleration

An object moves with constant acceleration if its velocity changes uniformly in time.

If we call vo to the initial speed, vf the final speed, and t the time, then the acceleration is calculated as:

$\displaystyle a=\frac{v_f-v_o}{t}$

The new stealth helicopter was traveling at vo=180m/s and changed to vf=250 m/s in t=6 seconds, thus the acceleration was:

$\displaystyle a=\frac{250-180}{6}$

$a=11.67~m/s^2$

Please note this number is shown rounded to the nearest hundredth, but it was stored in the calculator's memory with full precision. This fact affects the next calculation as will be noted below.

The acceleration must be produced for some net force that can be calculated by:

F = m.a

Where m=15000 Kg is the mass of the helicopter. Thus:

F = 15000 * 11.67

F = 175000 N

The above product would lead to the inaccurate result of 175050 if the acceleration would have not used with its full representation in the calculator's memory.

The momentum of an object of mass m and velocity v is:

p = m. v

The final momentum of the helicopter is:

pf = m.vf = 15000*250 m/s

pf = 3750000 kg.m/s

Note: When performing calculations over intermediate results, it's important to keep them as accurate as possible to preserve the accuracy of the final result.

6 0

3 years ago

You were in a tog-o-war contest which your team won. Write a letter to your friend that tells why your team won the contest. Rem

ollegr [7]

Answer:

Imagine a tug-of-war between you and one

friend. If you are stronger, you apply more

force to the rope. You pull your friend across

the line, and you are the winner! If your friend

is stronger, he might pull you across the line.

Sometimes the forces are equal. Neither you

nor your friend moves across the line. The two

forces are balanced.

We say that the net force on an object is the combination of all the forces acting on it. To find the net force of

forces that are acting in the same direction, add them together. For example, if you pull on a box with a force of 25

newtons (N) while your friend pushes the box (in the same direction you are pulling) with a force of 30 N, the net

force applied to the box in that direction is 55 newtons.

To find the net force of forces that are acting in opposite directions, subtract the smaller force from the larger

one. If you are pulling on a tug-of-war rope with a force of 40 N, and your friend is pulling with a force of 35 N in

the opposite direction, the net force on the rope is 5 newtons in your direction. You win!

Explanation:

3 0

3 years ago

True or false the state of a medium helps determine the speed of sound passing through a medium

DIA [1.3K]

True. If a medium such as H2O is in ice form, sound can not pass through it as well as if it were water or water vapor

3 0

3 years ago

A plane flies 600 kilometers away from its bad at 400 meters per second then flies back to its base at 600 meters per second. Wh

tester [92]

Seems to me that it flies 400 m/s there and 600 m/s back the same distance.
therefore the average of 400 and 600 is 500 m/s. The distance is the same so the normal formula of (d2-d1)/(t2-t1) is applicable.

4 0

3 years ago

What is the energy stored in the 10.5 μ F 10.5 μF capacitor of a heart defibrillator charged to 8250 V ?

Kay [80]

Answer:

356.33 J

Explanation:

Energy: This can be defined as the ability or the capacity to do work. The S.I unit of Energy is Joules (J).

The Energy stored in a capacitor = 1/2CV²

E = 1/2CV².............................. Equation 1.

Where E = Energy stored in a capacitor, C = capacitance of the capacitor, V = potential difference across the plates of the capacitor.

Given: C = 10.5 μF = 10.5×10⁻⁶ F, V = 8250 V.

Substitute into equation 1

E = 1/2(10.5×10⁻⁶)(8250)²

E = 357.33 J.

Thus the energy stored in the defibrillator = 356.33 J

3 0

4 years ago