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kvv77 [185]
3 years ago
15

Give an example of how friction can be used and an example of how friction can be harmful

Physics
2 answers:
andrezito [222]3 years ago
6 0
Friction between the floor and our shoes is useful because it prevents us from slipping but it’s harmful in machines because it causes parts in contact to wear out
DaniilM [7]3 years ago
5 0

Answer:

friction can be used to slow things down but it can also be harmful because it can cause fire to start

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A slanted vector has a magnitude of 41 N and is at an angle of 23 degrees north of east. What are the magnitude and direction of
jenyasd209 [6]

Answer:

The horizontal component is 37.74 N to east

The vertical component is 16.02 N to North

Explanation:

Any slant vector has two components

→ Horizontal component = R cos Ф

→ Vertical component = R sin Ф

→ R is the magnitude of the vector

→ Ф is the direction of the vector with positive part of the horizontal axis

A slanted vector has a magnitude of 41 N and is at an angle of 23

degrees north of east

23° north of east means the angle between the vector and the

east direction is 23° (east is the positive horizontal direction)

That means R is 41 N and Ф is 23°

→ R = 41 N , Ф = 23°

→ The horizontal component = 41 × cos(23) = 37.74 N east

→ The vertical component = 41 × sin(23) = 16.02 N North

<em>The horizontal component is 37.74 N to east</em>

<em>The vertical component is 16.02 N to North</em>

7 0
3 years ago
Please solve for 15 points. Please don’t input a link.
melomori [17]

Answer:

a). Single replacement.

Explanation:

Because one element replaces another element in a compound

6 0
3 years ago
a plane travels 204 km, northeast in 15.0 minutes. It also increases elevation by 1.6 km, upward in the same amount of time. Wha
LUCKY_DIMON [66]

Answer:

230 m/s northeast, 1.8 m/s up

Explanation:

204 kilometres = 204000 metres

15.0 minutes = 900 seconds

Velocity = Distance / Time

= 204000 / 900

= 230 m/s northeast (to 2 sf.)

1.6km = 1600 metres

Velocity = 1600 / 900

= 1.8 m/s up (to 2 sf.)

Read more on Brainly.com - brainly.com/question/13863590#readmore

5 0
3 years ago
Read 2 more answers
An atom is made up of which of the following?
mamaluj [8]

Answer:

B electrons protons and neutrons

hope i helped...

Explanation:

6 0
3 years ago
Read 2 more answers
A wind turbine is a machine that spins when the wind blows. The turbine blades are attached to a
Hunter-Best [27]

Answer: B, increase the rate at which he turns the crank

Explanation: i got it right

3 0
1 year ago
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