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2 years ago

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Physics

1 answer:

Zanzabum2 years ago

5 0

Tires aren't made from pure rubber because it makes the weight higher which increases the engine load.

This is defined as a piece of rubber which is attached to the wheels of automobiles for movement.

Pure rubber isn't used to make tyres because it has a higher weight which increases the engine load thereby making the vehicle slower.

Read more about Tyre here brainly.com/question/24332515

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A coin is placed 29 cm from the center of a horizontal turntable, initially at rest. The turntable then begins to rotate. When t

kobusy [5.1K]

Answer:

The coefficient of static friction between the coin and the turntable is 0.51

Explanation:

at the time of the slip:

centripetal force = frictional force

mv^2/r = x*m*980

v^2/r = 980x

x = v^2/980r

= [(120)^2]/[980*29]

= 0.51

Therefore, The coefficient of static friction between the coin and the turntable is 0.51

5 0

3 years ago

3.) Brady walks 5 meters forward, turns right, walks 25 meters, turns right again, walks 5

Triss [41]

Answer:

Distance covered is: 45 meters

Displacement is 15 meters to the right of where he started

Explanation:

Notice that Brady has walk a path that looks like an incomplete rectangle of height 5 meters and length 25meters, although he actually didn't cover the full length (25 meters) when getting back to the point where he started (he made just 10 meters instead of 25 after the third turn right) See attached image.

Therefore, Brady's displacement is 15 meters to the right of where he started, and the total distance he covered is :

Distance = 5m + 25m + 5m + 10m = 45m

5 0

3 years ago

Which action can be explained by physics

Serjik [45]

Walking to school. Hope this helps!

7 0

3 years ago

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What is the speed of a 55.0 kg skydiver who has 7.81 x 104 J of kinetic energy?

KATRIN_1 [288]

Answer:

v=53.3m/s

Explanation:

Ek=1/2mv²

7.81×10⁴=1/2×55.0v²

v= the square root of 7.81×10⁴/0.5×55.0

v=53.3m/s

5 0

4 years ago

What is meant by the term law of conservation?

GalinKa [24]

Answer:

Explanation:

any law stating that some quantity or property remains constant during and after an interaction or process, as conservation of charge or conservation of linear momentum.

4 0

3 years ago

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