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Irina18 [472]
3 years ago
13

Jamie is a hairstylist who works in a salon. He noticed that when many of the stylist or blow drying hair the power goes out wha

t is the best scientific question that can be asked about Jamie's observations
Physics
2 answers:
Mashcka [7]3 years ago
6 0
The people are using a lot of electricity blow drying to many peoples hair so i would make a schedule so it dosent get to busy with costumers
tangare [24]3 years ago
3 0
With all the hairdryers on at the same time, there's a lot of current being drawn from the mains to supply the dryers. This has overloaded a circuit breaker/fuse somehwere in his system causing a power cut or safety reasons. He probably needs to get a qualified electrician in and get the wiring sorted out so that it can handle the electric current at peak demand, or schedule the demand so that the overload doesn't happen. If he's busy, then I'd go or the electrician option to keep things moving safely.
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A thin uniform rod (length = 1.2 m, mass = 2.0 kg) is pivoted about a horizontal, frictionless pin through one end of the rod. (
Anika [276]

Answer:

a=9.8 rad/s^{2}

Explanation:

Torque, \tau is given by

\tau=Fr where F is force and r is perpendicular distance

R=0.5Lcos\theta where \theta is the angle of inclination

Torque, \tau can also be found by

\tau=Ia where I is moment of inertia and a is angular acceleration

Therefore, Fr=Ia and F=mg where m is mass and g is acceleration due to gravity

Making a the subject, a=\frac {Fr}{I}=\frac {mgr}{I} and already I is given as  

I=\frac {mL^{2}}{3} and r is 0.5Lcos\theta hence  

a=\frac {0.5mgLcos\theta}{1/3 mL^{2}}

a=\frac {3gcos\theta}{2L}

Taking g as 9.81, \theta is given as 37 and L is 1.2

a=\frac {3*9.81cos37}{2*1.2}=9.7932679419

a=9.8 rad/s^{2}

4 0
3 years ago
I have no idea what to do. Plz help!
aleksklad [387]
Work is (force) times (distance). For Amy, you know both of them, and you can easily multiply them to find the amount of work. For Joe, the distance is zero, which should tell you all you need to know.
7 0
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monitta

122

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2 years ago
When a rubberband is stretched all the way back, it is an example of which type of energy?
avanturin [10]
The answer is C. elastic potential energy
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