PHYSICS MIDDLE SCHOOL

A model rocket rises from rest with constant acceleration of 106m/s2.what is the rocket speed at a height of 3.2m

Answers

Answer 1

Answer:

At a height of 3.2 meters, the final speed of the model rocket is 26.05 m/s.

Given the following data:

Initial speed = 0 m/s (since the model rocket accelerated from rest).

Acceleration = 106 $m/s^2$

Distance (height) = 3.2 meters.

To find the final speed of the model rocket, we would use the third equation of motion;

$V^2 = U^2 + 2aS$

Where:

V is the final speed.

U is the initial speed.

a is the acceleration.

S is the displacement or distance covered.

Substituting the given parameters into the formula, we have;

$V^2 = 0^2 + 2(106)(3.2)\n\nV^2 = 0 + 678.4\n\nV = √(678.4)$

Final velocity, V = 26.05 m/s

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The shape of the ships hull causes the ship to displace (get rid of or remove from one place to another) a greater volume of water then a solid piece of steel (or metal whichever the ship is made of) with the same mass. A ship displaces a volume of water equal in weight to the submerged portion of the ship, ok.
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What 2 Tacoma make up the scientific name

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A quartz crystal vibrates with a frequency of 93621 Hz. What is the period of the crystals motion? T=1/93621 does not give me the correct answer. I got 0.00001?

Answers

The time period of the crystal motion is equal to 1.06 ×10⁻⁵ seconds.

How is a time period related to frequency?

The time period of oscillation of a wave can be defined as the time taken by any element to complete one oscillation.

The time period for a wave can be represented as follows:

T = 2π/ω

The frequency defines as the number of completeoscillations made by any wave element per unit of time. The frequency can be defined as a parameter that explains the rate of oscillation and vibration.

The relation between the frequency and the time period can be written as:

f = 1/T

Where f is the frequency of the wave and T is the time period of the wave.

Given, the frequency with which the crystalvibrates, f = 93621 Hz

The time period (T) of the crystals motion can be determined as:

T = 1/f = 1/ 93621

T = 1.06 ×10⁻⁵ sec

Learn more about the time period, here:

brainly.com/question/14270891

#SPJ2

Answer:0.0000107s

Explanation:

f=1/T

T=1/f

f=93621 1/s

t=1/93621

T=0.00001068 s

Why does the speed of sound depend on air temperature?

Answers

A certain temperature can be thick so the speed may take longer to get to it's destination.

The speed of sound is dependent on how close together the molecules of the transmitting medium is.

What are the 3 things needed to make hurricane

Answers

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Thanks,
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Warm sea surface temperatures, light winds, and rotation or spin.

While digging in the backyard, you find an old coin. It’s mass is 26.76 g and it’s volume is 3 cm . What is the density?

Answers

Considering the definition of density, the density of the old coin is 8.92 $(g)/(cm^(3) )$ .

It is neccesary to know that density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.

In other words, Density is a quantity that allows us to measure the amount of mass in a certain volume of a substance, that is, density is the relationship between the mass of a substance and the volume it occupies.

Mathematically, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

$density=(mass)/(volume)$