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Vsevolod [243]
3 years ago
7

Can I improve the design of my simple machine? How?

Physics
1 answer:
blsea [12.9K]3 years ago
5 0

Answer:

12345

Explanation:

yan na po answer ko hehehe

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Three ropes A, B and C are tied together in one single knot K.
arsen [322]

The tension in the rope B is determined as 10.9 N.

<h3>Vertical angle of cable B</h3>

tanθ = (6 - 4)/(5 - 0)

tan θ = (2)/(5)

tan θ = 0.4

θ = arc tan(0.4) = 21.8 ⁰

<h3>Angle between B and C</h3>

θ = 21.8 ⁰ + 21.8 ⁰ = 43.6⁰

Apply cosine rule to determine the tension in rope B;

A² = B² + C² - 2BC(cos A)

B = C

A² = B² + B² - (2B²)(cos A)

A² = 2B² - 2B²(cos 43.6)

A² = 0.55B²

B² = A²/0.55

B² = 65.3/0.55

B² = 118.73

B = √(118.73)

B = 10.9 N

Thus, the tension in the rope B is determined as 10.9 N.

Learn more about tension here: brainly.com/question/24994188

#SPJ1

8 0
2 years ago
Read 2 more answers
PLEASE HELP ME!!!
denis-greek [22]
The reason for that is that P-waves (primary waves) travel faster than S-waves (secondary waves).

If we call v_p the speed of the primary waves and v_s the speed of the secondary waves, and we call S the distance of the seismogram from the epicenter, we can write the time the two waves take to reach the seismogram as
t_P =  \frac{S}{v_P}
t_S= \frac{S}{v_S}

So the lag time between the arrival of the P-waves and of the S-waves is
\Delta t = t_S-t_P= \frac{S}{v_S}- \frac{S}{v_P}= S(\frac{1}{v_S}- \frac{1}{v_P})
We see that this lag time is proportional to the distance S, therefore the larger the distance, the greater the lag time.
6 0
3 years ago
A jet airliner moving initially at 858 mph
Vika [28.1K]

Answer:

1546.1 mph

Explanation:

Let's take the east direction as positive x-direction and north as positive y-direction.

The components of the initial velocity of the jet are:

v_x = 858 mph\\v_y = 0

while the components of the wind's velocity are

a_x = (777)(cos 38^{\circ})=612.2 mph\\a_y = (777)(sin 38^{\circ})=478.4 mph

So, the components of the new velocity of the jet are:

v'_x = v_x + a_x = 858+612.2 =1470.2 mph\\v'_y = v_y+a_y = 0+478.4=478.4 mph

And therefore, the new speed is the magnitude of the new velocity, so:

v'=\sqrt{v'_x^2+v'_y^2 }=\sqrt{(1470.2)^2+(478.4)^2}=1546.1 mph

8 0
3 years ago
Some of the early planetesimals that formed the solar system still survive today. Where would you find such planetesimals
madam [21]

Some of the early planetesimals that formed the solar system still survive in the asteroid and Kuiper belts.

Asteroids are the rocky leftover planetesimals of the internal solar device. Planetesimals shape in protoplanetary disks, many develop into big planets, whilst others do no longer get that possibility. in the solar gadget, remnant planetesimals and minor planets inhabit the asteroid belt, Kuiper belt, Oort cloud, and different solid niches.

After the planets had been shaped, their gravity hurled most of the last planetesimals into the solar or into remote orbits around it. Phobos and Deimos are believed to be planetesimals that were captured through Mars gravity and became satellites. many of Jupiter's moons are believed to be planetesimals as well. Planetesimals are very precious to scientists because they are able to offer information approximately the introduction of our solar gadget

A planetesimal is small our bodies from which a planet originated in the early stages of formation of the solar system. Protoplanets are while planetesimals join together thru collisions and via the force of gravity to form larger our bodies

Learn more about planetesimals here:-brainly.com/question/13047588

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8 0
2 years ago
The spectra of most galaxies show redshifts. this means that their spectral lines _________.
spin [16.1K]
Have wavelengths that are longer than normal.
3 0
3 years ago
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