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defon
3 years ago
12

HELP ASAP!!

Physics
1 answer:
AveGali [126]3 years ago
5 0
It would be a) 2 electrons
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The front and rear sprockets on a bicycle have radii of 8.40 and 4.91 cm, respectively. The angular speed of the front sprocket
Rudik [331]

Explanation:

It is given that,

Radius of the front sprockets, r_f=8.4\ cm=0.084\ m

Radius of the rear sprockets, r_r=4.91\ cm=0.0491\ m

The angular speed of the front sprocket is 12.3 rad/s, \omega_f=12.3\ rad/s

(a) Linear speed of the front sprockets, v_f=r_f\times \omega

v_f=0.084\times 12.3    

v_f=1.0332\ m/s

v_f=103.32\ cm/s

Linear speed of the rear sprockets, v_r=r_r\times \omega

v_r=0.0491\times 12.3    

v_r=0.60393\ m/s

v_r=60.393\ cm/s

(b) Let a_r is the centripetal acceleration of the chain as it passes around the rear sprocket.

a_r=\dfrac{v_r^2}{r_r}

a_r=\dfrac{(60.393)^2}{0.0491}

a_r=74283.39\ m/s^2

a_r=7428339\ cm/s^2

`Hence, this is the required solution.

8 0
3 years ago
Read 2 more answers
An Alaskan rescue plane traveling 41 m/s
densk [106]

Answer:

-56.9 m/s

Explanation:

Given:

Δy = -165 m

v₀ = 0 m/s

a = -9.8 m/s²

Find: v

v² = v₀² + 2aΔy

v² = (0 m/s)² + 2 (-9.8 m/s²) (-165 m)

v = -56.9 m/s

8 0
4 years ago
Can you help with this question about riding bikes
Gekata [30.6K]

Answer:

1. Check Your Wheels

2. Check Your chain for rust

3. Check Your Brakes

4. Check your crank arms and pedals

7 0
2 years ago
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Please help! Will give brainliest. 
I am Lyosha [343]

<span>The correct frequency when you tune a guitar is when you hear the right tune in your own hearing and standard. The measure frequency of a guitar string is when you measure the tune of the string correctly. This is not the same because manual tuning is affected by many factors.</span>

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4 years ago
A satellite is always being pulled by gravity.<br> a. True<br> b. False
tangare [24]
This is true. Gravity is constantly pulling on anything and everything (even light!), no matter how far away it is from another object.
3 0
3 years ago
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