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Zigmanuir [339]
3 years ago
15

Assume that an intercontinental ballistic missile goes from rest to a suborbital speed of 6.50 km/s in 60.0 s (the actual speed

and time are classified). What is its average acceleration in m/s2 and in multiples of g (9.80 m/s2)?
Physics
1 answer:
olasank [31]3 years ago
4 0

Answer:

Average acceleration is (11.05)g\ m/s^2

Explanation:

It is given that,

Initial velocity, u = 0

Final velocity, v = 6.5 km/s = 6500 m/s

Time taken, t = 60 s

Acceleration, a=\dfrac{v-u}{t}

a=\dfrac{v}{t}  

a=\dfrac{6500\ m/s}{60}  

a=108.33\ m/s^2

Since, g=9.8\ m/s^2

So, a=(11.05)g\ m/s^2

So, the angular acceleration of the missile is (11.05)g\ m/s^2. Hence, this is the required solution.

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A family pool holds 10,000 gallons of water how many cubic meters is this
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4959167 is how many cubic meters in 10,000 gallons of water
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FrozenT [24]

Answer:

Width of the slit will be equal to 1.47 mm

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We have given wavelength of the light \lambda =550nm=550\times 10^{-9}m

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So x=3\times 10^{-3}m

We have to find the width of the slit

For the first order wavelength is equal to \lambda =\frac{x}{D}\times a, here a width of slit

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5 0
3 years ago
A hockey puck on a frozen pond is given an initial speed of 20.0 m/s. If the puck always remains on the ice and slides 115 m bef
bekas [8.4K]

Answer:

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Explanation:

We are given;

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Final velocity;v = 0 m/s (since it comes to rest)

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v² = u² + 2as

Making a the subject, we have;

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From the question, the only force acting on the puck in the x direction is the force of friction. Since friction always opposes motion, we see that:

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We also know that F_k is defined by;

F_k = μ_k•N

Where;

μ_k is coefficient of kinetic friction

N is normal force which is (mg)

Since gravity acts in the negative direction, the normal force will be positive.

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F_k = μ_k•mg - - - (2)

where g is acceleration due to gravity.

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−ma = μ_k•mg

m will cancel out to give;

-a = μ_k•g

μ_k = -a/g

g has a constant value of 9.81 m/s², so;

μ_k = - (-1.739/9.81)

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3 0
3 years ago
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sergejj [24]

Answer:

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f = 400 N

6 0
3 years ago
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