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hodyreva [135]
3 years ago
14

Sam shared with his class that he lives on Oak Street. Sam is likely how old?

Physics
2 answers:
Lyrx [107]3 years ago
4 0

D FOUR years old hope this helps


mark brainliest please

yulyashka [42]3 years ago
4 0

A child will be able to understand and recognize this by the age of four years old.

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A sharp knife cut things easily​
Lostsunrise [7]

Answer:

its due to less surface area of action

pressure is high

4 0
3 years ago
An electric fan has a low speed of 3.00 rotations per second and a medium speed of 9.00 rotations per second. The fan rotates co
Korolek [52]

Answer:

α=9.42 rad/s    T= 0.014 rad/s^{2}

Explanation:

Low speed= Wi=3 rps = 3*2*π rad/s= 6π rad/sec

Medium speed= Wf= 9 rps= 9*2*π rad/sec= 18 rad/sec

time= t= 4 sec

Angular acceleration=α=\frac{Wf-Wi}{t}

⇒α=(18 π - 6 π)/4

⇒α=9.42 rad/s

b).

Rotational inertia= I = 1.5*10^-3 kg-m^2

Net torque= T = I*α = (1.5*10^-3) * (9.42) rad/s^2

⇒T= 0.014 rad/s^2

7 0
3 years ago
You wiggle a string, that is fixed to a wall at the other end, creating a sinusoidal wave with a frequency of 2.00 Hz and an amp
allochka39001 [22]

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4 0
3 years ago
Inertia is responsible for :
DENIUS [597]
B. the reason we must wear seat belts
8 0
3 years ago
Read 2 more answers
While standing on a bridge 40.0 m above the ground, you drop a stone from rest. when the stone has fallen 3.80 m, you throw a se
Norma-Jean [14]
Given: distance 1 d₁ = 40 m;  distance 2 d₂ = 3.8 m   g = -9.8 m/s²

 Initial Velocity Vi = 0  Final Velocity of stone 2 is unknown = ?

Total distance dₓ = d₁ - d₂  = 40 m - 3.8 m = 36.2 m

Formula: a = Vf² -  Vi²/2d   derive for Final Velocity Vf
 
acceleration is now due to gravity, therefore a = g

Vf = √2gd   Vf = √2(9.8 m/s²)(36.2 m)

Vf = 26.64 m/s  

Reason: The second stone will still start from rest.


3 0
3 years ago
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