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Lostsunrise [7]
4 years ago
8

What are some things cyclists do to reduce friction?

Physics
1 answer:
Juli2301 [7.4K]4 years ago
6 0

1. Cyclists could ride behind other cyclists to reduce the overall effects of wind resistance

2. Friction = μN --> where N is the normal force and μ is the coefficient of static or dynamic friction. By reducing the weight of the bike the could reduce the reaction force, which is the normal force that acts on them, which is friction is dependent on.

3. Also by getting a smother tire, which reduces the friction between the ground and the tire. This is why professional cyclists have smooth and thin tires meant for speed while mountain bikes generally have large projects called the tread of the tire, to increase friction so they dont slip while biking on rough terrain.

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At what temperature is the average kinetic energy of an atom in helium gas equal to 6.21 x 10-21 j?
NARA [144]

The average kinetic energy of an atom in helium gas at temperature T is given by,

K.E=\frac{3}{2}KT

here, K is botzmann constant =1.38×10⁻²³ m² kg s⁻² K⁻¹

Given, K.E= 6.21×10⁻²¹ J

Substituting the values,

6.21*10^{-21}=\frac{3}{2}1.38*10^{-23}T

T= 300 K

Therefore, at temperature 300 K the average kinetic energy of the atom in helium gas is 6.21×10⁻²¹ J.

5 0
4 years ago
What is your understanding of repetition and replication in science?
strojnjashka [21]
From my understanding, the two are opposite. Let me give you each word and what it scientifically means to me.

repetition
occurs when an activity is repeated by the same person

replication
occurs when an activity is repeated by a different person


I hope this completely answers your question! If you need further explanation, please let me know!
~Brooke❤️
5 0
3 years ago
A person walks 100m in 5
RUDIKE [14]
Answer:
20.35m per minute
Or
1,221.43 per hour





100/5=20
200/7= 28.57
50/4= 12.5

20+28.57+12.5= 61.07

61.07/3= 20.35m per minute

Or

20.35 x 60= 1,221.43m per hour
6 0
3 years ago
Male turkeys work to attract female turkeys, but only the dominant turkeys of the group breed. The less dominant turkeys are a g
quester [9]
So, all Turkeys work to attract female Turkeys, but only dominant Turkeys benefit from it, and the less dominant Turkeys don't benefit at all from it. That means that they are exhibiting altruism:selfless behavior.

However, in practical terms their behaviour also helps them, as they are often related to the dominant males.
5 0
4 years ago
Read 2 more answers
Which lab equipment is used as a cover to prevent heated materials from splattering out of the container and as a holding plate
faltersainse [42]

Watchglass is a lab equipment that is used as a cover to prevent heated materials from splattering out of the container and as a holding plate for hot or flammable materials

<u>Explanation:</u>

Watch glass is an equipment used as a cover to prevent heated materials from splattering out of the container and as a holding plate for hot or flammable materials. It is a kind of concave glass which is also used to evaporate a liquid and also provides good air circulation which is used during cooking. The name watchglass was derived as they are see through and so similar to pocket glasses.

3 0
3 years ago
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