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3 years ago

What do psychiatrist do

Physics

2 answers:

Artemon [7]3 years ago

5 0

Is a medical doctor who specializes in mental health, including use disorders

Mrac [35]3 years ago

3 0

They are people that specialize in giving a diagnosis to people and providing them treatment for their mental illness

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Find the intensity of a 55 dB sound given lo-10-12 wm2

Inessa05 [86]

Answer:

Intensity= $I=3.16\times 10^{-7}\ W\ m^{-2}$

Explanation:

Given:

$\beta=55\ dB\\I_o=10^{-12}\ W\ m^{-2}$

The sound level $\beta$ in dB with intensity $I$

and reference intensity $I_0$ is given by:

$\beta(dB)=10 \log_{10}(\frac{I}{I_0})$

Plugging in values.

$55=10 \log_{10}(\frac{I}{10^{-12}})$

Dividing both sides by 10.

$\frac{55}{10}=\frac{10 \log_{10}(\frac{I}{10^{-12}})}{10}$

$5.5=\log_{10}\frac{I}{10^{-12}}$

The above can be written as

$10^{5.5}=\frac{I}{10^{-12}}$

Multiplying both sides by $10^{-12}$

$10^{5.5}\times 10^{-12}=10^{-12}\times \frac{I}{10^{-12}}$

$10^{(5.5-12)}=I$

$10^{(-7.5)}=I$

∴ $I=3.16\times 10^{-7}\ W\ m^{-2}$

Intensity = $I=3.16\times 10^{-7}\ W\ m^{-2}$

7 0

3 years ago

You are designing a hydraulic lift for a machine shop. The average mass of a car it needs to lift is about 1500 kg. You wish to

ehidna [41]

Answer:

(a) Area(small piston)/Area(large piston) = 0.037

(b) h = 1336.36 cm = 13.36 m

Explanation:

(a)

The stress on the smaller piston is equally transmitted to the larger piston, in a hydraulic lift. Therefore,

Stress (small piston) = Stress (large piston)

Force (small piston)/Area (small piston) = Force (Large Piston)/Area (Large Piston)

Area(small piston)/Area(large piston) = Force (small piston)/Force(Large piston)

Area(small piston)/Area(large piston) = 550 N/(1500 kg)(9.8 m/s²)

Area(small piston)/Area(large piston) = 0.037

(b)

The work is also transmitted equally to the large piston. So,

Work(small piston) = Work(Large Piston)

Force(small piston).Displacement(small piston) = Force(large piston).Displacement(small piston)

(550 N)(h) = (1500 kg)(9.8 m/s²)(50 cm)

h = 735000 N.cm/550 N

h = 1336.36 cm = 13.36 m

5 0

3 years ago

Draw position time graph when speed is increasing

DedPeter [7]

Explanation:

We need to draw position-time graph when the speed is increasing.

The slope of position-time graph gives the speed of an object.

Position means distance covered.

When the speed of an object is increasing with time. It means it is moving with increasing speed.

The attached figure shows the position -time graph when speed is increasing.

3 0

3 years ago

The ability to do work is called what?

GuDViN [60]

Energy is the ability to do work

3 0

3 years ago

Read 2 more answers

When the Sun is directly overhead, the intensity of sunlight reaching the ground is about 1000 W/m^{2} 2 . The Earth has a radiu

Hunter-Best [27]

Answer:

The total power associated with sunlight shining on the Earth is 8.04 × 10^10W

Explanation: Please see the attachment below

6 0

3 years ago