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Dmitriy789 [7]
4 years ago
5

Which determines the pitch of a sound? A. At the same wavelength, the sound with the most cycles per second will have the highes

t pitch. B. At the same amplitude, the sound with the most cycles per second will have the higher pitch. C. At the same wavelength, the sound with the fewest cycles per second will have the lowest pitch. D. At the same amplitude, the sound with the fewest cycles per second will have the higher pitch.
Physics
1 answer:
kipiarov [429]4 years ago
5 0
This would be known to be determined by its sound wave which would be the amplitude. The pitch of sound would actually be a little differenr in this matter. But know that we know and understand the sound wave of the pitch of sound, we know that this is done by amplitude.
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which two tools below would be the most useful in testing how the mass of an object can affect the distance it moves after being
Mariulka [41]
It would be best to list the answer choice

3 0
4 years ago
A 50 kg car is pushed so that it speeds up from 20 m/s to 50 m/s in 3 seconds. What is the force acting on the car?
egoroff_w [7]

Answer:

A. 500 N

Explanation:

Acceleration is change in velocity over change in time.

a = Δv / Δt

a = (50 m/s − 20 m/s) / 3 s

a = 10 m/s²

Force is mass times acceleration.

F = ma

F = (50 kg) (10 m/s²)

F = 500 N

3 0
3 years ago
Consider the baby being weighed in Figure 4.25.
Lunna [17]

The mass and tension due to the system are as follows:

  • The mass of the child and scale = 10.6 kg
  • The tension T, in the cord attaching the child to the scale = 104N
  • The tension T', in the cord attaching the scale to the ceiling T' = 108.9 N

<h3>What is tension?</h3>

Tension is a type of pulling force due transmitted by means of a string or cable.

<h3>Force = mass * acceleration due to gravity</h3>

a) The mass of the child and scale = 104/9.81 = 10.6 kg

b) The tension T, in the cord attaching the child to the scale = scale reading = 104N

c) The tension T', in the cord attaching the scale to the ceiling = scale reading + weight of scale

T' = 104 + (0.5 * 9.81)

T' = 108.9 N

d) The sketch is attached in the picture

In conclusion, the tension is force exerted on the cord due to the weight of the scale and the baby.

Learn more about tension force at: brainly.com/question/24994188

#SPJ1

4 0
2 years ago
Which of the following is an example of a chemical property? Density Solubility Flammability Magnetism
choli [55]
The answer should be flammability
8 0
4 years ago
An amount of energy is added to ice, raising its temperature from -10°C to -5°C. A larger amount of energy is added to the sam
lara [203]

Answer:

The correct option is;

B) The specific heat of ice is less than that of water.

Explanation:

Here we have

Let the amount of energy added to the ice at -10 C to raise the temperature to -5 C be X J

Let the amount of energy added to the water at 15 C to raise the temperature to 20 C be Y J

We know that the heat required, ΔQ to raise the temperature of a substance is given by

ΔQ = m·c·Δθ

Where:

m = Mass of the substance

c = Specific heat capacity

Δθ = Temperature change

Since the mass of the ice and the water are the same, so also is the change in temperature, (-5 - (-10) = 5 and 20 - 15 = 5) we have

for m₂·c₂·Δθ₂ > m₁·c₁·Δθ₁

Where:

m₁, c₁, Δθ₁, is for the ice and m₂, c₂, Δθ₂ is for the water and

m₁ = m₂

Δθ₁ = Δθ₂

Therefore,

c₂ > c₁ = c₁ < c₂

That is the specific heat capacity of the ice is lesser than the specific heat capacity of the water.

4 0
3 years ago
Read 2 more answers
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