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seraphim [82]
3 years ago
15

How can friction help you in your daily life?

Physics
2 answers:
11Alexandr11 [23.1K]3 years ago
6 0

Answer: friction can help you in many ways such as when you hit the brakes on your car or when you are washing your face

Explanation:

friction happens in just about everything you do

skad [1K]3 years ago
5 0

Friction help us us maintain our stability and prevents us from slipping. Friction also works the same way with cars and vehicles preventing them from skidding and helping them stop when the brakes are applied.

This is maybe too little.

Hope this helps though! C:

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What are the 4 significant figures of 31,546,000?
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The 4 significant figures of 31,546,000 are all 8 of the digits.
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2 years ago
Can someone help pleaseeee
Eduardwww [97]

Answer:

Motion with constant velocity of magnitude 1 m/s (uniform motion) for 4 seconds in a positive direction and then for 2 seconds uniform motion with constant velocity of magnitude 3 m/s in reverse direction .

Explanation:

The graph shows a constant velocity of 1 m/s for 4 seconds in the positive direction. After that, between 4 seconds and 6 seconds, the object reverses its motion with constant velocity of magnitude 3m/s.

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What type of general wave requires a medium for the wave to travel through
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Answer:

Mechanical

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2 years ago
An electron enters a region of uniform electric field with an initial velocity of 64 km/s in the same direction as the electric
8090 [49]

Answer:

1.) 11 km/s

2.) 9.03 × 10^-5 metres

Explanation:

Given that an electron enters a region of uniform electric field with an initial velocity of 64 km/s in the same direction as the electric field, which has magnitude E = 48 N/C.

Electron q = 1.6×10^-19 C

Electron mass = 9.11×10^-31 Kg

(a) What is the speed of the electron 1.3 ns after entering this region?

E = F/q

F = Eq

Ma = Eq

M × V/t = Eq

Substitute all the parameters into the formula

9.11×10^-31 × V/1.3×10^-9 = 48 × 1.6×10^-19

V = 7.68×10^-18 /7.0×10^-22

V = 10971.43 m/s

V = 11 Km/s approximately

(b) How far does the electron travel during the 1.3 ns interval?

The initial velocity U = 64 km/s

S = ut + 1/2at^2

S = 64000×1.3×10^-6 + 1/2 × 8.4×10^12 × ( 1.3×10^-9)^2

S =8.32×10^-5 + 7.13×10^-6

S = 9.03 × 10^-5 metres

3 0
2 years ago
How do particles move when a surface wave passes through a medium?
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They move in a perpendicular direction to the direction of wave motion. Happy to help!
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