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slavikrds [6]
3 years ago
8

What is force and define it's kinds

Physics
2 answers:
mel-nik [20]3 years ago
7 0

Action-at-a-Distance Forces  

Gravitational Force  

Electrical Force  

Magnetic Force


Contact Forces  

Frictional Force  

Tension Force  

Normal Force  

Air Resistance Force  

Applied Force  

Spring Force        

nekit [7.7K]3 years ago
3 0
Newton's 2nd law of motion.

kinds,

External Force
Surface Tension
Pseudo Force
Frictional Force
Viscous Force
Buoyancy



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Air escaping out from an air hose at a gas station always feels cool. Why? ​
kati45 [8]

Answer:

The air is contained at a high pressure in the tube. When it escapes from a small orifice, it suddenly expands. A large amount of its heat is absorbed in the process of expansion resulting in considerable fall in its temperature. This is why the escaping air feels cold.

8 0
2 years ago
A block of mass 22 kg is sliding along the ice at constant speed 5.0 m/s just ahead of it is q block of mass 29 kg sliding in th
mars1129 [50]

Answer:

Answer:

New speed of the 22-kg block is 1.57 m/s

Explanation:

Mass of block  

Mass of another block  

Initial speed of the block  

Initial speed  of the another block  

Initial speed  of the another block  

For conservation of momentum, we have

Substitute all the values and solving for final speed of the 22kg block is

new speed of the 22-kg block is 1.57 m/s

Couldnt write the answer so check picture

8 0
3 years ago
Choose the answer choice that BEST completes the following sentence. About four million tons of __________________ are converted
yaroslaw [1]

Answer:

<em>About four million tons of </em><em><u>matter</u></em><em> are converted to energy in the Sun’s core every second</em>

Explanation:

<u>The Sun </u>

It's estimated that The Sun fuses near 600 million tons (6.10^9\ kg) of hydrogen into helium every second. As a result, 4 million tons of matter are converted to energy every second according to Einstein's equation E=mc^2

4 0
4 years ago
Can someone please help me with these. I don't understand any of it.
ValentinkaMS [17]
1. electrical energy: electrical energy that is caused by moving electrons

2. coolant: a mixture of antifreeze and water that removes excess heat from an internal engine

3. electric compressor: a device that <span>acts as a pump, circulating refrigerant throughout the refrigerator 

4. the inside of the fridge and the food becomes colder

5. the coolants becomes a hot, high-pressure gas 

6. as coolant transfers thermal energy to the air outside, it turns back into a liquid

</span>
6 0
3 years ago
An electron of mass 9.11×10-31kg leaves one end of a TV picture tube with zero initial speed and travels in a straight line to t
SOVA2 [1]

Answer:

(A) Acceleration will be 240.3846\times 10^{12}m/sec^2

(b) Time taken will be 1.4\times 10^{-8}sec

(c) Force will be 2189.9\times 10^{-19}N              

Explanation:

We have given that electron starts from rest so initial velocity u = 0 m/sec

Final velocity v=2.50\times 10^6m/sec

Mass of electron m=9.11\times 10^{-31}kg

Distance traveled by electron s=1.30cm =0.013m

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

(a) So (2.5\times 10^6)^2=0^2+2\times a\times 0.013

a=240.3846\times 10^{12}m/sec^2

(b) From first equation of motion we know that v = u+at

So 2.50\times 10^6=0+240.3846\times 10^{12}t

t=0.014\times 10^{-6}=1.4\times 10^{-8}sec

(c) From newton's law we know that force

F=ma=9.11\times 10^{-31}\times 240.3846\times 10^{12}=2189.9\times 10^{-19}N

7 0
3 years ago
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