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Ilia_Sergeevich [38]
3 years ago
12

If you comb your hair and the comb becomes positively charged what does your hair become

Physics
2 answers:
elena-s [515]3 years ago
7 0

If you comb your hair and the comb becomes positively charged, then your hair becomes negatively charged.

Anton [14]3 years ago
5 0
<h2>Answer and Explanation </h2>

If you comb your hair and the comb becomes positively charged then your hair become negatively charged. The hair gets electrons from the comb, dropping the comb with a lack of electrons and a positive charge, the hair momentarily has an abundance of electrons and a negative charge. When we bring the comb near hair after combing then attraction happens, therefore, hair become negatively charged.

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A pool is 31.4 m long and 40.0 m wide. if the average depth of water is 3.30 ft, what is the mass (in kg) of water in the pool?
olga nikolaevna [1]

The mass (in kg) of water in the pool is 1.264 * $$10^6 kg.

<h3>What is mass?</h3>

A numerical measurement of inertia, a basic characteristic of all matter, in physics. It essentially refers to a body of matter's resistance to changing its speed or location in response to the application of a force. The change caused by an applied force is smaller the more mass a body has.

Mass is a physical body's total amount of matter. Inertia, or the body's resistance to acceleration when a net force is applied, is also measured by this term. The strength of an object's gravitational pull to other bodies is also influenced by its mass. The kilogram serves as the SI's fundamental mass unit.

Given: A pool is 31.4 m long and 40.0 m wide. if the average depth of water is 3.30 ft

31.4 * 40.0 = 1256 $$m^2

1 m = 39.37 in = 3.28 ft

3.30 ft = 1.01 m

Volume of pool = 1256 * 1.01 = 1264 $$m^3

Since 1 $$m^3 water contains $$10^3$ kg the volume of the pool is

1.264 E3 * E3 = 1.264E6 kg

(or 1.264 * $$10^6 kg)

The mass (in kg) of water in the pool is 1.264 * $$10^6 kg.

To learn more about mass refer to:

brainly.com/question/19385703

#SPJ4

8 0
2 years ago
Talking to adults can be intimidating and uncomfortable if you do not yet feel like one. However, learning how to effectivelycom
Korvikt [17]

Answer: i didnt look at your question its to long

Explanation:

8 0
3 years ago
Two blocks are connected by a massless rope that passes over a 1 kg pulley with a radius of 12 cm. The rope moves over the pulle
tangare [24]

Answer:

F=1.159

Explanation:

From the question we are told that:

Mass of pulley M=1kg

Radius r=12cm

Mass of block A M_a=2.1kg

Mass of block B m_b=4.1kg

Spring constant\mu= 358 J/m2

Generally the equation for Torque is mathematically given by

Since \sumF=ma

At mass A

 T_2-f_3=2.1a

At mass B

 4.8-T_1=4.1a

At  Pulley

 R(T_1-T_2)=\frac{1*1*R^2}{2}\frac{a}{R}

 R(T_1-T_2)=0.55a

Therefore the equation for total force F

At mass A+At mass B+At  Pulley

 (T_2-f_3+4.8-T_1+R(T_1-T_2)=2.1a+4.1a+0.55a

 (T_2-f_3+4.8-T_1+R(T_1-T_2)=2.7a+4.8a+0.55a

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Since From above equation

M_{eff}=6.7kg

Therefore

T=2\pi \sqrt{{\frac{M_{eff}}{k}}

T=2\pi \sqrt{{\frac{6.75}{\mu}}

T=0.862s

Generally the equation for frequency is mathematically given by

F=\frac{1}{T} \\F=\frac{1}{0.862}

F=1.159

3 0
3 years ago
What is the total number of natural element ?​
Kitty [74]

Answer:

5 element's

<h3>hope it's help </h3>
8 0
3 years ago
Some runners have just started a race. They began at rest and are getting faster.What statement best describes the motion of the
olasank [31]

Answer:

B

Explanation:

8 0
3 years ago
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