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raketka [301]
4 years ago
9

What doe the head of a vector represent​

Physics
1 answer:
Maslowich4 years ago
6 0

Answer:

Explanation:

A vector from a point to a point is denoted , and a vector may be denoted , or more commonly, . The point is often called the "tail" of the vector, and is called the vector's "head." A vector with unit length is called a unit vector and is denoted using a hat, .

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A remote-controlled car's wheel accelerates at 22.6 rad/s2 . If the wheel begins with an angular speed of 10.2 rad/s, what is th
Lapatulllka [165]

Answer:

70.9pi rad/s

Explanation:

angle turned through = 16

angular acceleration = 22.6 rad/s2

angular speed = 10.2 rad/s

time = ?

angular acceleration = angular speed/time

time = 10.2/22.6

time = <u>0</u><u>.</u><u>4</u><u>5</u><u> </u><u>s</u><u>e</u><u>c</u><u>o</u><u>n</u><u>d</u><u>s</u>

<u>angular speed</u><u> </u><u>=</u><u> </u><u>a</u><u>n</u><u>g</u><u>l</u><u>e</u><u> </u><u>t</u><u>u</u><u>r</u><u>n</u><u>e</u><u>d</u><u> </u><u>t</u><u>h</u><u>r</u><u>o</u><u>u</u><u>g</u><u>h</u><u>/</u><u>t</u><u>i</u><u>m</u><u>e</u>

<u>angular speed</u><u> </u><u>=</u> (16 × 2pi)/0.45

= 70.9pi rad/s

3 0
3 years ago
What state of matter does sound travel the fastest?
antoniya [11.8K]

Sound travels fastest through matter in the <em>solid state</em>.

I know this from having answered a huge number of Brainly questions that required me to look up things like this:

-- Speed of sound in air . . . about 340 m/s

-- Speed of sound in sea-water . . . about 1,500 m/s

-- Speed of sound in steel . . . about 5,960 m/s

6 0
4 years ago
What happens to matter consumed in nuclear fusion?
lyudmila [28]

It is converted to energy according to E =mc^2

4 0
4 years ago
There are 1000 blank in a meter
Andru [333]

Answer:

1000 millimeters

Explanation:

5 0
3 years ago
1. Two astronauts are 2.00 m apart in their spaceship. One speaks to the other. The conversation is transmitted to earth via ele
Veronika [31]

Answer:

1.6949*10^6 m

Explanation:

Our values are

d=2m

v=354m/s

We can find the time through

t=\frac{d}{v}

t=\frac{2}{354}

t=5.64*10^{-3}s

The expression for the distance between the Earth and the spaceship is as follow:

d=ct

Where c is Light speed, and t our previous time.

d= (3*10^8)(5.64*10^{-3})

d= 1.6949*10^6m

Therefore the distance between the Eath and the Spaceship is 1.6949*10^6 m

4 0
4 years ago
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