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3 years ago

Cyclist always bends when moving the direction opposite to the wind. Give reasons

Physics

1 answer:

Nuetrik [128]3 years ago

6 0

When he bends he kinda off his feet and light but if it’s not i’m so sorry this is just my thinking.

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By what factor does the sound intensity increase if the sound intensity level increases from 60 db to 61 db?

tiny-mole [99]

Answer:

$\frac{I_{2}}{I_{1}} = 10^{0.1}$

Explanation:

The sound intensity level β can be mathematically defined as

$\beta(dB) = 10log_{10}(\frac{I}{I_{o} } )$

where $I_{o}$ is the reference intensity and is equal to $10^{-12}$ $W/m^{2}$ .

Now,

$\beta_{2} - \beta_{1} = 10 log\frac{I_{2} }{I_{o}} - 10 log\frac{I_{1} }{I_{o}}\\62-60= 10log(\frac{\frac{I_{2} }{I_{o} } }{\frac{I_{1} }{I_{o} } } )\\1=10log(\frac{I_{2} }{I_{1} } )\\\\\frac{I_{2} }{I_{1} }=10^{0.1}$

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3 years ago

In a transverse wave, the motion of the disturbance is in what direction relative to the wave motion? opposite parallel perpendi

Vikentia [17]

Answer:

$\displaystyle Perpendicular$

Explanation:

Longitudinal waves are parallel to the direction of the motion of the disturbance, while transverse waves are perpendicular to the direction of the motion of the disturbance.

I am joyous to assist you anytime.

8 0

4 years ago

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As shown in the diagram, an inflated balloon released from rest moves horizontally with velocity "v". The velocity of the balloo

Mrac [35]

Answer:

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Explanation:

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3 years ago

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How can electric energy be converted to heat energy?

Goshia [24]

To do that, you must pass electric current through a substance
that electrons have to spend energy to pass through.
The substance will be one that gets warm and dissipates heat
when electric current flows through it.
We'll say that the substance has "resistance", which we can measure.
The amount of heat that appears when current flows through it
will be (current²)·(resistance).

A few examples of things used for that purpose:

-- resistors
-- burners on electric stoves
-- coils of resistor-wire in a toaster
-- aquarium heater
-- electric clothes iron
-- electric coffee pot
-- blow-dryer
-- electric hair-curling iron
-- skinny tungsten wire in a light-bulb .

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4 years ago

A person walks 5.0kilometers north, then 5.0 kilometers east. His displacement is closest to ? A. 10 kilometers northwest B. 7.1

Rainbow [258]

Use vector analysis and calculate resultant vector using Pythagoras theorem:
5^2 + 5^2 = 50
Square root of 50 = approx 7.1 km NE
Therefore the answer is D

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3 years ago

Cyclist always bends when moving the direction opposite to the wind. Give reasons​

Cyclist always bends when moving the direction opposite to the wind. Give reasons