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ANEK [815]
3 years ago
10

When a guitar is tuned to adjust it pitch what is it that is changed?

Physics
1 answer:
suter [353]3 years ago
3 0

Answer:

B) Its frequency

Explanation:

  • <u>The pitch of sound heard depends on its frequency of the sound wave. Frequency refers to how fast the sound wave is oscillating. </u>
  • A high frequency sound wave has a high pitch while a low frequency sound wave has a low pitch.
  • The faster the sound wave oscillates the higher the pitch. For instance, a guitar with a big heavy string will vibrate slowly and thus create a low pitch.

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A 26-kg sled is on a snow-covered slope. The coefficients of friction between the sled’s runners and the snow are µs = 0.096 and µ
sweet-ann [11.9K]

Answer:

Explanation:

Given

mass of sled =26 kg

coefficient of static friction \mu _s=0.096

coefficient of kinetic friction \mu _k=0.072

In order to move sled from rest we need to provide a force greater than static friction which is given by

f_s=\mu mg=0.096\times 26\times 9.8=24.46 N

After Moving Sled kinetic friction comes in to play which is less than static friction

f_k=\mu _kmg=0.072\times 26\times 9.8=18.34 N

therefore minimum force to keep moving sledge at constant velocity is 18.34 N

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3 years ago
A student uses an indicator to measure the pH of a solution. The indicator shows a pH of 7. What must be true of this solution?
Anna71 [15]

Answer:

The solution is neither acidic or basic,

PH < 7    acidic

PH = 7    neutral

PH > 7 basic

It is a measure of the (H+) hydronium concentration.

3 0
3 years ago
Is it true or false Objects with different masses can’t have the same momentum.
xenn [34]

Answer:

true

Explanation:

3 0
2 years ago
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What does it mean to work out your core
Arte-miy333 [17]

Answer:

I'm pretty sure it means like getting abs and working out your stomach.

Explanation:

4 0
3 years ago
Read each scenario and then answer the question scenario a 120 J of work is done in 6 seconds Scenario b 160 J of work is done i
Zielflug [23.3K]

Answer:

all scenarios are using the same power

Explanation:

we know that power is defined as P(Watts)=W(Joules)/t(seconds).

When applying this formula to each of the scenarios we find:

\frac{120J}{6s}=\frac{160J}{8s}=\frac{200J}{10s}= 20W

Done

7 0
3 years ago
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