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3 years ago

What is the relationship between the object density the liquid density and the tendency the the object to float?

1 answer:

8 0

When object density is lesser than liquid density, it floats....BUT when it's density is greater than the liquid density, then it sinks...

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Describe how radio waves are different from sound waves.

Lilit [14]

Answer:

sound and radio waves are completely different phenomena.

Explanation:

7 0

2 years ago

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A cable is lifting a construction worker and a crate, as the drawing shows. The weights of the worker and crate are 965 N and 15

Alex777 [14]

Answer:(a)2631.46 N

(b)1605.51 N

Explanation:

Assuming there is a cable between crate and worker

Given

weight of worker $W_w=965 N$

Weight of crate $W_c=1510 N$

mass of worker $m_w=\frac{965}{g}=98.46 kg$

mass of crate $m_c=\frac{1510}{g}=154.08 kg$

acceleration of system $a=0.620 m/s^2$

Tension in the wire carrying Worker

$T-(m_w+m_c)g=(m_w+m_c)a$

$T=(m_w+m_c)(g+a)$

$T=(252.54)(9.8+0.62)$

$T=2631.46 N$

(b)Tension in the string above

$T_2-m_c\cdot=m_ca$

$T_2=m_c(g+a)$

$T_2=154.08(9.8+0.62)$

$T_2=1605.51 N$

4 0

3 years ago

What is a simple circuit?

raketka [301]

Answer:

This is your answer. If I'm right so,

Please mark me as brainliest. thanks!!

6 0

3 years ago

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How many stars our thier in the universe

Svet_ta [14]

<h2>About 1 billion trillion stars</h2>

Since the universe is so big, we don't know for sure what the exact number is, but assuming an average of 100 billion stars per galaxy (which is smaller than a universe), we could say that there are 1 billion trillion stars in the observable universe.

8 0

3 years ago

The acceleration of a car is 0.33 m/s squared. if the applied force were cut in half, what would you predict the acceleration wo

NNADVOKAT [17]

0.17m/s²

Explanation:

According to newtons second law "the force on a body is depends on its mass and acceleration"

Force = mass x acceleration.

The more the mass and acceleration, the more the force a body possess.

Given that the acceleration of the body is 0.33m/s²

Force = 0.33 x mass

If the force on the body is halved, the acceleration will also be halved;

i.e:

Force = F

$\frac{F}{2}$ = 0.33 x mass

F = $\frac{1}{2}$ x 0.33 x mass

F = 0.17 x mass

Force = acceleration x mass

Acceleration is 0.17m/s²

learn more:

Acceleration brainly.com/question/3820012

#learnwithBrainly

3 0

3 years ago