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3 years ago

When using a cell phone, a(n) ________ converter chip changes your voice's sound waves into digital signals.

Physics

1 answer:

Nuetrik [128]3 years ago

3 0

Answer: analog-to-digital

Explanation: Analog-to-digital converters as the name implies simply refers to components which are used to convert continuous analog signals into a discrete analog outputs so they it can be read and processed by a microprocessor. The microprocessors are unable to depict and read analog signals which could be gathered from sound, light or water wave sources. This wave sources are then sampled, processed and sorted into levels by the analog-to-digital converter before being sent to the microprocessor so that the waves can be read.

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(a) What is the current involved when a truck battery sets in motion 720 C of charge in 4.00 s while starting an engine? (b) How

OLEGan [10]

Answer:

(a) Current flowing through truck battery is 180 A

(b) Time taken in calculator is 333.33 s

Explanation:

(a) Given:

The charge on the truck battery,q = 720 C

Time, t = 4.00 s

Consider I be the current flowing through truck battery.

The relation between current, charge and time is:

I = q/t

Substitute the suitable values in the above equation.

$I=\frac{720}{4}$

I = 180 A

(b) Given:

The charge on the calculator,q = 7.00 C

The current flowing through calculator, I = 0.3 mA = 0.3 x 10⁻³ A

Consider t be the time.

The relation between current, charge and time is:

t = q/I

Substitute the suitable values in the above equation.

$t=\frac{1}{0.3\times10^{-3} }$

I = 333.33 s

8 0

3 years ago

Two hockey pucks, labeled A and B, are initially at rest on a smooth ice surface and are separated by a distance of 18.0 m. Simu

salantis [7]

Answer: pick A moves 10.2 metre

Explanation: since they were given a quick push simultaneously the product of their distance moved and velocity would be equal.

Let the distance moved by puck B x then that of puck A would be 18-x.

So therefore we have that,

1.3*(18-x) = 1.7*x

23.4 - 1.3x = 1.7x

23.4=3x

Making x subject of formula we have

x = 23.4/3 = 7.8m

But the distance moved by puck A is 18-x. So therefore,

18-7.8=10.2meter

6 0

3 years ago

Read 2 more answers

The classic Millikan oil-drop experiment was the first to obtain an accurate measurement of the charge on an electron. In it, oi

Sati [7]

Answer:

$1.56\times 10^5 N/C$

Explanation:

The electric field that will balance the weight of the oil drop can be calculated using the following:

electric force, F = e E ( where, e is the charge of an electron and E is the electric field)

weight, W = 2.5 ×10⁻¹⁴ N

e E = W

$E =\frac{W}{e}$

Substitute the values:

$E =\frac{ 2.5 \times 10^{-14} N}{1.6\times10^{-19}C}= 1.56\times 10^5 N/C$

6 0

3 years ago

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A 24 volt battery is connected to a 3Ω resistor and a 5Ω resistor in series. What is the current in the circuit?

Vladimir [108]

Answer: 3 Amperes

Explanation:

Voltage of battery = 24 volts

R1 = 3Ω

R2 = 5Ω

Total resistance = ?

Current, I = ?

Since the resistors are connected in series, the total resistance (Rtotal) of the circuit is the sum of each resistance.

i.e Rtotal = R1 + R2

Rtotal = 3Ω + 5Ω = 8Ω

Now recall that voltage = current x resistance

i.e V = I x Rtotal

24volts = I x 8Ω

I = 24 volts / 8Ω

I = 3 amperes

Thus, there is 3 Amperes of current in the circuit

7 0

3 years ago

Viruses are hard to get rid of

tekilochka [14]

The answer is D, they reproduce quickly.

4 0

3 years ago

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