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4 years ago

Who is most likely to benefit from use of lithium?

1 answer:

4 0

I think that the people who are most likely to benefit from lithium is people with bipolar disorder. Because there have been tests that recently show that they use it for patients with that disease.

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The pressure exerted by a phonograph needle on a record is surprisingly large, due to the very small width of the needle. If the

Alex

Answer:

102597.6 Pa

Explanation:

mass, m = 1.25 g

Force, F = m x g = 1.25 x 9.8 x 10^-3 = 0.01225 N

radius, r = 0.195 mm = 0.195 x 10^-3 m

Area, A = πr² = 3.14 x 0.195 x 0.195 x 10^-6 m^2

A = 1.19 x 10^-7 m^2

Pressure is defined as the thrust acting per unit area.

P = Force / Area

P = 0.01225 N / (1.10 x 10^-7)

P = 102597.6 Pa

Thus, the pressure exerted is 102597.6 Pa.

6 0

3 years ago

The force between two charges when they are 2 cm apart is

mixer [17]

Answer:

$q_1=9.9998\mu C$ and $q_2=0.0002\mu C$

$q_1=0.00016\mu C$ and $q_2=9.99984\mu C$

Explanation:

We are given that

Force between two charges=0.036 N= $36\times 10^{-3}N$

Distance between two charges, r=2cm= $2\times 10^{-2}$ m

1m=100cm

Sum of two charges= $10\mu C$

Let one charge= $q_1=q\mu C=q\times 10^{-6}C$

$q_2=(10-q)\times 10^{-6} C$

We know that

Electric force between two charges

$F=\frac{kq_1q_2}{r^2}$

Where $k=\frac{1}{4\pi \epsilon_0}=9\times 10^{9}$

Using the formula

$36\times 10^{-3}=9\times 10^{9}\times \frac{q\times 10^{-6}\times(10-q)\times 10^{-6}}{(2\times 10^{-2})^2}$

$\frac{144\times 10^{-7}}{9\times 10^{9}\times 10^{-12}}=q(10-q)$

$0.0016=10q-q^2$

$q^2-10q+0.0016=0$

$10000q^2-100000q+16=0$

$q=\frac{100000\pm\sqrt{(100000)^2-4\times 10000\times 16}}{2\times 10000}$

Using the formula

$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

$q=9.999$ and $q=0.00016$

$q_2=10-9.9998=0.0002$

$q_2=10-0.00016=9.99984$

Hence, two charges are

$q_1=9.9998\mu C$ and $q_2=0.0002\mu C$

$q_1=0.00016\mu C$ and $q_2=9.99984\mu C$

5 0

3 years ago

On which objects does gravity act?

Butoxors [25]

Answer:

all objects in the universe.

3 0

3 years ago

Why the weight of a body decreases with increases in distance from the earth's surface

Tom [10]

because as the distance increases the gravitational force decreases so the weight of a body decreases

6 0

3 years ago

Read 2 more answers

Can anyone please help me thank you

Archy [21]

The answer is B, the average kinetic energy increases.

Kinetic energy is energy of motion, So by making a liquid then a gas, you can see the molecules are more mobile meaning an increas in Kinetic energy :)

please mark as Brainliest! Thanks!!

6 0

4 years ago

Read 2 more answers