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salantis [7]
3 years ago
5

PLEASE HELP!!

Physics
1 answer:
irga5000 [103]3 years ago
8 0
You use energy from your body and press the pedals on the bike that has chains and the chains are connected to a circular ish shape and is also connected to the wheel and it spins
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Two trains are blowing their whistles. The first train is stationary, and the
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When a body of mass 0.25 kg is attached to a vertical massless spring, it is extended 5.0 cm from its unstretched length of 4.0
lora16 [44]

Answer:

d=0.165m

Explanation:

Given

m=0.25kg,x_{1}=5cm*\frac{1m}{100cm}=0.05m,x_{2}=4cm*\frac{1m}{100cm}=0.04m,v=2\frac{rev}{s}

The tension of the spring is

F_{k}=K*x_{1}=m*g

K=\frac{m*g}{x_{1}}

K=\frac{0.25kg*9.8m/s^2}{0.05m}=49N/m

The force in the spring is equal to centripetal force so

F_{c}=\frac{m*v^2}{r}

v=w*r=2\pi*r

But Fc is also

Fc=KxΔr

F_{c}=K*(r-x_{2})

Replacing

m*4\pi^2*r=K*(r-x_{2})

0.25kg*4\pi^2*r=49*(r-0.04m)

r=0.205m

total distance is

d=0.205-0.04=0.165m

3 0
3 years ago
Please help im stuck and can't find the answer sheet ANYWHERE :(​ PLEASEEEEEEEEEEE
Vladimir [108]

Answer:

All steps are 20 * 100  (break the rest into appropriate pieces)

You can multiply as follows

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3 years ago
How many minutes in 1 hour
fgiga [73]

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60

Explanation:

Every 60 minutes is an hour

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3 years ago
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The compressor on an air conditioner draws 35.0 A when it starts up. If the start-up time is 0.59 s, how much charge passes a cr
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is a conditioner es 13.4

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