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san4es73 [151]
4 years ago
5

Define and explain a vector

Physics
1 answer:
k0ka [10]4 years ago
8 0
A quantity having direction as well as magnitude, especially as determining the position of one point in space relative to another or <span>an organism, typically a biting insect or tick, that transmits a disease or parasite from one animal or plant to another.

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Your patient care task requires gloves, a gown, goggles, and a mask. From this list which item of PPE should be put on last?
BlackZzzverrR [31]
It should be gown, mask, gloves, and then goggles!
3 0
3 years ago
What is the power of 10 when 157,821 is written in scientific notation?
vlabodo [156]

Answer:

The power of 10 in the given value is 5.

Explanation:

scientific notation is expressed in the decimal form. That means always written in the power of 10 form. The decimal place is put after 1 digit.

3 0
4 years ago
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A 20-gram bullet traveling at 250 m/s strikes a block of wood that weighs 2 kg. With what velocity will the block and bullet mov
Shkiper50 [21]

Answer:

the velocity of the bullet-wood system after the collision is 2.48 m/s

Explanation:

Given;

mass of the bullet, m₀ = 20 g = 0.02 kg

velocity of the bullet, v₀ = 250 m/s

mass of the wood, m₁ = 2 kg

velocity of the wood, v₁ = 0

Let the velocity of the bullet-wood system after collision = v

Apply the principle of conservation of linear momentum to calculate the final velocity of the system;

Initial momentum = final momentum

m₀v₀ + m₁v₁ = v(m₀ + m₁)

0.02 x 250  + 2 x 0    =    v(2  + 0.02)

5 + 0 = v(2.02)

5 = 2.02v

v = 5/2.02

v = 2.48 m/s

Therefore, the velocity of the bullet-wood system after the collision is 2.48 m/s

6 0
3 years ago
A metal wire of resistance 2.30 10-8 is cut into two equal pieces that are then connected side by side to form a new wire the le
Elena-2011 [213]

Equal parallel resistors are governed by the formula


R = r^2/(2r) = r/2


r = 2.30 * 10^-8 ohms which is very tiny.


R = 2.30 *10^-8 / 2

R = 1.15 * 10^-8 ohms. <<<< Answer

7 0
3 years ago
Can a plane mirror firm a real image ? if yes tell me how ?​
alexdok [17]

Answer:

Explanation:

A plane mirror will produce a virtual image of a real object. But it is correct that a plane mirror will also produce a real image of a virtual object.A virtual image An image in a mirror is a virtual object, which can in turn be used to create another image. This can occur when you have more than one optical element in the optical system. Then the object of one component becomes the image of the next optical component.

So the answer is Yes it will!!!!

3 0
3 years ago
Read 2 more answers
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