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3 years ago

Ahsoka pulls a wounded soldier (mass 64 kg) across the ground with a force 18 Newtons. If they have an acceleration of 1.5 m/s2

Physics

2 answers:

Mekhanik [1.2K]3 years ago

7 0

Hello!

Let's applicate formula:

F - Ff = ma

How we dont know friction force, we descompose it in:

F - (μ * N) = ma

Now, lets replace (N = Is the normal force, or weight in this case):

18 N - (μ * (64 kg * 9,81 m/s²) = 64 kg * 1,5 m/s²

First, lets resolve parenthesis:

18 N - (μ * 627,84 N) = 96 N

The force happens to subtract:

- (μ * 627,84 N = 96 N - 18 N

-μ = 78 N / 627,84 N

-μ = 0,124

The value of <u>μk = 0,124</u>

Kryger [21]3 years ago

4 0

Answer:

0.124

Explanation:

18-(9.81*64)*k=64*1.5

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A cylindrical bucket, open at the top, is 28.0 cm high and 11.0 cm in diameter. A circular hole with a cross-sectional area 1.55

svlad2 [7]

Answer:

so height is 0.1283 m

Explanation:

given data

height = 28 cm

diameter = 11 cm

cross-sectional area = 1.55 cm2

water flow rate = 2.46×10^−4 m3/s

to find out

How high will the water in the bucket rise

solution

we know that here

potential energy = kinetic energy

mgh = 1/2 mv²

multiply both sides by the 2 and we get

2mgh=mv²

solve it we get

√(2gh) = v ....................1

h = v²/2g ...............2

and

flow rate = A V

2.46×10^−4 = V 1.55×10^−4

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4 years ago

Hydrogen bonds are weaker than the bond that holds hydrogen to oxygen in a

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Answer:

Your answer is false

Explanation:

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3 years ago

Ionic compounds can be readily dissolved in water because the high dielectric constant of water screens and decreases the ______

PSYCHO15rus [73]

Answer: Electrostatic force

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There are three kinds of forces within the atom:

i) Electromagnetic force of attraction between the electrons and protons

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iii) Strong nuclear force between the electrons and protons

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To learn more about nuclear force, refer to:
brainly.com/question/8695581

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2 years ago

G the density of an object equals its mass divided by its volume. the mass of earth is 6 × 1024 kg and its radius is 4 × 103 mil

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4 years ago

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