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4 years ago

A sock with a mass of 0.03 kg is stuck to the inside of a clothes dryer spins

Physics

1 answer:

ValentinkaMS [17]4 years ago

5 0

Answer:

15.71 m/s

Explanation:

We are given;

Time; t = 0.2 s

Radius; r = 0.5 m

The circumference will give us the distance covered.

Formula for circumference is 2πr

Thus; Distance = 2πr = 2 × π × 0.5 = π

Linear speed = distance/time = π/0.2 = 15.71 m/s

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Which of the following measurements involve a direction? ( select all that apply)

gavmur [86]

The answer is A, D (Apex)

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3 years ago

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During an auto accident, the vehicle's air bags deploy and slow down the passengers more gently than if they had hit the windshi

MArishka [77]

Answer:

0.3814128 m

Explanation:

t = Time taken = 36 ms

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration = 60g

g = Acceleration due to gravity = 9.81 m/s²

$v=u+at\\\Rightarrow u=v-at\\\Rightarrow u=0-(-9.81\times 60)\times 36\times 10^{-3}\\\Rightarrow u=21.1896\ m/s$

$v^2-u^2=2as\\\Rightarrow s=\dfrac{v^2-u^2}{2a}\\\Rightarrow s=\dfrac{0^2-21.1896^2}{2\times -9.81\times 60}\\\Rightarrow s=0.3814128\ m$

The distance the person traveled is 0.3814128 m

4 0

3 years ago

A force F with arrow= (5xî+ 4yĵ), where F with arrow is in newtons and x and y are in meters, acts on an object as the object mo

harkovskaia [24]

Answer:

w= 62.75 J

Explanation:

Given that

Force vector F= 5 x i + 4 y j

Space vector or displacement vector d= 5.01 i

We know that work (w)

w=∫ F.ds

w= ∫(5 x i + 4 y j) .dx ( only object is moving in x- direction)

$w=\int_{0}^{5.01}5xi.dxi$

$w=\int_{0}^{5.01}5x.dx$

$w=\left [\dfrac{5}{2}x^2\right ]_0^{5.01}$

w= 2.5 x 5.01² J

w= 62.75 J

6 0

3 years ago

A load of 36 N attached to a spring hanging

givi [52]

Answer:

The required force is 55.38 N.

Explanation:

First we have to find the spring constant K;

k = $\frac{mg}{d}$ = $\frac{36}{0.065}$ = 553.846 N/m

As,

F= -K $x$

or, F= - 553.846 × 0.10

or, F= -55.3846 N

Hence,

$F_{needed}$ = - $F_{spring}$

∴ $F_{needed}$ = 55.38 N

The required force to stretch it by this amount is 55.38 N.

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3 years ago

The orientation of which of the following does not influence the phases of the moon?

klasskru [66]

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4 years ago

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