3 years ago

I want the answer right now

Physics

2 answers:

anygoal [31]3 years ago

5 0

Answer:

Screw is the Answer. 

Rzqust [24]3 years ago

5 0

Screw is not a simple machine.

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Left arm has area 10.0 cm2, right has area 5.00 cm2. 100 g of water isadded to right side. a) Determine the length of the water

Masja [62]

Answer:

0.49 cm

Explanation:

We are given that

$A_1=10 cm^2$

$A_2=5 cm^2$

Mass of water,m=100 g

a. $\rho_w=1 g/cm^3$

Volume, $V=\frac{mass}{density}=\frac{100}{1}=100 cm^3$

Length of water column in the right arm= $L=\frac{V}{A_2}=\frac{100}{5}=20 cm$

b. $\rho_m=13.6 g/cm^3$

In equilibrium condition

Pressure at point A=Pressure at point B

$P+\rho_mg(h+h_2)=P+\rho_wgL$

$hA_1=h_2A_2$

$h_2=\frac{hA_1}{A_2}$

$13.6\times 9.8(h+h(\frac{A_1}{A_2}))=1\times 9.8\times 20$

$13.6\times h(\frac{A_2+A_1}{A_2})=20$

$h=\frac{20A_2}{13.6(A_2+A_1)}$

$h=\frac{20\times 5}{13.6\times (10+5)}=0.49 cm$

4 0

4 years ago

The process of arriving at a general conclusion based on the observation of specific examples is called ___________ reasoning.

olga55 [171]

The process of arriving at a general conclusion based on the observation of specific examples is called inductive reasoning. It is a logical process where multiple premises are combined to obtain a conclusion. It is used in applications that involve prediction and forecasting.

7 0

3 years ago

The speed of sound in air is 345 m/s. A tuning fork vibrates above the open end of a sound resonance tube. If sound waves have w

anzhelika [568]

Answer:

594.8 Hz

Explanation:

Parameters given:

Speed of sound, v = 345 m/s

Wavelength = 58 cm = 0.58 m

Speed of a wave is given as:

Speed = wavelength * frequency

Therefore:

Frequency = Speed/Wavelength

Frequency = 345/0.58

Frequency = 594.8 Hz

8 0

3 years ago

The speed of light in ________ is about 230 million m/s.

Vladimir [108]

Answer:

Water

Explanation:

The speed of light in water is about 230 million m/s.

8 0

3 years ago

Which of the following is an example of work?

EastWind [94]

Answer:

it's D

Explanation:

6 0

3 years ago