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3 years ago

How are CD's recorded? Using digital technology using analog technology

Physics

2 answers:

alex41 [277]3 years ago

5 0

I think analog but I could be wrong

umka21 [38]3 years ago

3 0

Answer:

its digital technology

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Unbalanced contact forces between several objects would result in

Alekssandra [29.7K]

I think c Is the right answer or it could be b

7 0

3 years ago

6. What are the arguments for using real per capita GNI to compare living standards between countries? What weakness does this m

NeTakaya

Answer:

Levels of real per capita GDP are often cited to indicate living standards are higher in one country than another, and, by implication, that some systems of government or sets of government policies are better than others, but this measure of comparative living standards is so flawed as to be practically useless.

Explanation:

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2 years ago

How long does it take an object to move 35 m away if the object starts with a velocity of -8.0 m/s with an acceleration of 3 m/s

VashaNatasha [74]

Answer:

Explanation:

s=vit+1/2at²

s=t(vi+1/2at)

s/t=vi+1/2at

s/t²=vi+1/2a

1/t²=vi+1a/2s

t²=2s/vi+a

t=√2s/vi+a

t=√2*35/-8.0+3

t=√70/-5

t= √-14

t=-3.74

t=√2s/vi+1

t=√2*35

6 0

4 years ago

Select the statements that describe a vector. Check all that apply.

DerKrebs [107]

By definition, vectors are quantities that have magnitude (positive or negative) and direction.
Graphically, they are illustrated by directed line segments, with arrows that indicate the direction.

Evaluate the given statements.
1. Vectors have a size only. FALSE
2. Vectors have a size and a direction. TRUE
3. Vectors are indicated with arrows. TRUE
4. Vectors can have only positive values. FALSE
5. Vectors can have positive or negative values. TRUE

3 0

3 years ago

Read 2 more answers

Each wheel of a 320 kg motorcycle is 52 cm in diameter and has rotational inertia 2.1 kg m2 . The cycle and its 75 kg rider are

Amiraneli [1.4K]

Answer:

The value is $h = 32.91 \ m$

Explanation:

From the question we are told that

The diameter of each wheel is $d = 52 \ cm = 0.52 \ m$

The mass of the motorcycle is $m = 320 \ kg$

The rotational kinetic inertia is $I = 2.1 \ kg \ m^2$

The mass of the rider is $m_r = 75 \ kg$

The velocity is $v = 85 \ km/hr = 23.61 \ m/s$

Generally the radius of the wheel is mathematically represented as

$r = \frac{d}{2}$

=> $r = \frac{0.52}{2}$

=> $r = 0.26 \ m$

Generally from the law of energy conservation

Potential energy attained by system(motorcycle and rider ) = Kinetic energy of the system + rotational kinetic energy of both wheels of the motorcycle

=> $Mgh = \frac{1}{2} Mv^2 + \frac{1}{2} Iw^2 + \frac{1}{2} Iw^2$