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DiKsa [7]
4 years ago
9

Can charging by friction occur only in solids? explain using an example.

Physics
1 answer:
frozen [14]4 years ago
8 0
The answer to the question can charging by friction occur only in solids is no. not at all. the static charge generated by following fluids can be hazardous. just as the static discharge when you touch a doorknob produces a spark, lightening is the spark from the static charge built up in the atmosphere.
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An antitank weapon fires a 3.00-kg rocket which acquires a speed of 50.0 m/s after traveling 90.0 cm down a launching tube. Assu
Dmitry [639]

Answer:

Force in the rocket will be 4166.64 N

Explanation:

We have given mass of the rocket m = 3 kg

Rocket acquires a speed of 50 m sec so final speed v = 50 m/sec

Initial speed u = 0 m/sec

Distance traveled s = 90 cm = 0.9 m

From third equation of motion we know that v^2=u^2+2as

50^2=0^2+2\times a\times 0.9

a=1388.88m/sec^2

From newton's law we F = ma

So force will be F=1388.88\times 3=4166.64N

So force in the rocket will be 4166.64 N

3 0
3 years ago
Jayda wants to study the chemical properties of iron. How could she do this?
Bess [88]

yes she could  she can do one peace of her iron and she can do the rest of it tomorrow

5 0
4 years ago
A rock at rest falls off a tall cliff. what is the rock's velocity as the rock hits the ground 3.5s later
Tcecarenko [31]
Just multiply 9.8 m/s ( earths gravity ) by the time 3.5 seconds. 
6 0
3 years ago
What is the velocity of a jet that travels 785 m [W] in 2.39 s?
Cerrena [4.2K]

Answer:

v = 328.4

Explanation:

Data:

  • Distance (d) = 785 m
  • Time (t) = 2.39 s
  • Velocity (v) = ?

Use formula:

  • \boxed{v = \frac{d}{t}}

Replace:

  • \boxed{v = \frac{785m}{2.39s}}

It divides:

  • \boxed{v = 328.4\frac{m}{s}}}

What is the velocity?

The velocity is <u>328.4 meters per second.</u>

7 0
3 years ago
5. What is the percent composition of sulfur in H2SO4?
AVprozaik [17]
A. I looked it up and it should be somewhere around A
7 0
3 years ago
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