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3 years ago

What is blood ? Name its components

Physics

1 answer:

Bas_tet [7]3 years ago

3 0

Plasma, red blood cells, white blood cells, and platelets.

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Ken wants to jump and have some fun too! Barbie loans Ken her bungee cord. Is this a good idea? Explain with evidence and reason

aliina [53]

Answer:To ensure a safe and thrilling jump you will determine the relationship between the jump height and the

number of rubber bands used to make the bungee cord. You must allow your Barbie doll to come as

close to the floor as possible without sustaining any injuries or fatalities.

Explanation:

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3 years ago

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Which statement about pulleys is NOT true?

jok3333 [9.3K]

Answer:

the answer is #2

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3 years ago

Helppppo!!!

goldfiish [28.3K]

Answer:

Electric force = $3.15\times 10^{-11}\textrm{ N}$ .

Explanation:

Given:

Charge on one grain, $q_{1}=6\times 10^{-10}\textrm{ C}$

Charge on second grain, $q_{2}=2.3\times 10^{-15}\textrm{ C}$

Distance between the two grains is, $r=2\textrm{cm}=0.02\textrm{ m}$

Electric force acting between two charges $q_{1}\textrm{ and }q_{2}$ separated by a distance $r$ is:

$F_{e}=\frac{kq_{1}q_{2}}{r^2}$

Where, $k$ is Coulomb's constant equal to $9\times 10^9\textrm{ }Nm^2/C^2$ .

Now, plug in the given values and solve for $F{e}$ .

$F{e}=\frac{9\times 10^9\times 6.0\times 10^{-10}\times 2.3\times 10^{-15}}{(0.02)^2}\\\\F_{elec}=3.15\times 10^{-11}\textrm{ N}$

Therefore, the electric force between them is $3.15\times 10^{-11}\textrm{ N}$ .

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3 years ago

How much magnification is needed to see a nanometer?.

ArbitrLikvidat [17]

20,000,000

To see things at a nanometer, which is a trillionth of a meter, you would need to increase magnification nearly 20,000,000 times those are ionizing atoms

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2 years ago

The circuit below represents four resistors connected to a 12-volt source. What is the total current in the circuit? 4.0Ω 6.0Ω 1

Tpy6a [65]

Answer:

For series connected resistors I = 0.5A

For parallel connected resistors I = 8.5A

Explanation:

Since the diagram is not available, our solution will be divided into two;

According to ohm's law which states that "the current passing through a,metallic conductor at constant temperature is directly proportional to the potential difference across its ends. Mathematically, E = IRt where;

E is the electromotive force

I is the total current in the circuit

Rt is total equivalent resistance.

Where E = 12volts

Rt can be gotten depending on the arrangements of the resistors which can either be in series or parallel.

If the resistors are in series, their equivalent resistance gives;

Rt = 4.0Ω+6Ω+8Ω+6Ω

Rt = 24Ω

The current I will be;

I = E/Rt = 12/24

I = 0.5A

If the connection is in series, the total current in the circuit will be 0.5A.

For resistance in parallel;

1/Rt = 1/4Ω+1/6Ω+1/8Ω+1/6Ω

1/Rt = 6+4+3+4/24

1/Rt = 17/24

Rt = 24/17Ω

I = E/Rt

I = 12/(24/17)

I = 12×17/24

I = 8.5A

If the connection is in parallel, the total current in the circuit will be 8.5A

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3 years ago

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What is blood ? Name its components​

What is blood ? Name its components