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Masja [62]
3 years ago
6

What is the most problem of any defective tools?​

Physics
1 answer:
Alexeev081 [22]3 years ago
8 0

Answer:

knife or weapon

Explanation:

that could be dangerous...

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List two diseases of the muscular system.
lesantik [10]

Answer:

muscular dystrophy and  myasthenia gravis

4 0
3 years ago
Read 2 more answers
An electron is released from rest in a weak electric field given by E =-2.30 x 10-10 N/Cj. After the electron has traveled a ver
Goshia [24]

Explanation:

It is given that,

An electron is released from rest in a weak electric field of, E=2.3\times 10^{-10}\ N/C

Vertical distance covered, s=1\ \mu m=10^{-6}\ m

We need to find the speed of the electron. Let its speed is v. Using third equation of motion as :

v^2-u^2=2as

v^2=2as.............(1)

Electric force is F_e and force of gravity is F_g. As both forces are acting in downward direction. So, total force is:

F=mg+qE

F=9.1\times 10^{-31}\times 9.8+1.6\times 10^{-19}\times 2.3\times 10^{-10}

F=4.57\times 10^{-29}\ N

Acceleration of the electron, a=\dfrac{F}{m}

a=\dfrac{4.57\times 10^{-29}\ N}{9.1\times 10^{-31}\ kg}

a=50.21\ m/s^2

Put the value of a in equation (1) as :

v=\sqrt{2as}

v=\sqrt{2\times 50.21\times 10^{-6}}

v = 0.010 m/s

So, the speed of the electron is 0.010 m/s. Hence, this is the required solution.

6 0
3 years ago
Make a general statement about what happens to light as it enters a different medium.
Aleksandr-060686 [28]

Answer:

Refraction is an effect that occurs when a light wave, incident at an angle away from the normal, passes a boundary from one medium into another in which there is a change in velocity of the light. The wavelength decreases as the light enters the medium and the light wave changes direction.

Explanation:

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The cooling effect inside a refrigerator is produced by
nlexa [21]
Actually, when the refrigeration liquid is vaporized, the cooling effect is produced
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The energy of random atomic and molecular motion is called.
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Energy of a random atomic and molecular is called molecules energy
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