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3 years ago

12

When driving uphill, the force of gravity is working against you and you may need to accelerate or change to _______ gear to mai

ntain your speed.?

1 answer:

Charra [1.4K]3 years ago

5 0

'Change to low gear' is your answer.

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A rollerblader is blading along the sidewalk. Which forms of measurement would be the best to use to determine the rollerblader'

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You would use distance an time formula to mathmaticly solve

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3 years ago

To halt the decline in biodiversity, we must do which of the following?

emmainna [20.7K]

<span>adopt ecological conservation practices </span>

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2 years ago

Two sound waves have equal displacement amplitudes, but wave 1 has two-thirds the frequency of wave 2. What is the ratio of the

zlopas [31]

Answer:

$\dfrac{I_1}{I_2}=\dfrac{4}{9}$

Explanation:

c = Speed of wave

$\rho$ = Density of medium

A = Area

$\nu$ = Frequency

$\nu_1=\dfrac{2}{3}\nu_2$

Intensity of sound is given by

$I=\dfrac{1}{2}\rho c(A\omega)^2\\\Rightarrow I=\dfrac{1}{2}\rho c(A2\pi \nu)^2$

So,

$I\propto \nu^2$

We get

$\dfrac{I_1}{I_2}=\dfrac{\nu_1^2}{\nu_2^2}\\\Rightarrow \dfrac{I_1}{I_2}=\dfrac{\dfrac{2}{3}^2\nu_2^2}{\nu_2^2}\\\Rightarrow \dfrac{I_1}{I_2}=\dfrac{4}{9}$

The ratio is $\dfrac{I_1}{I_2}=\dfrac{4}{9}$

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2 years ago

A solid element that is malleable' a good conductor of electricity, and reacts with oxygen is classified as a

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1) metal
Even though metalloids are also conductors of heat and electricity, malleable they are not as good as metals.
Metals are very good conductors of electricity and heat. They are also very hard to touch. Noble gases and non metals are the exact opposite in physical and chemical properties. Metals readily react with oxygen.

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3 years ago

-A pool ball leaves a 0.70 meter high table with an initial velocity of 2.4 m/s. Predict the time required for the pool ball to

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Answer:

0.70+2.4=23.7+35.0=answer

Explanation:

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3 years ago

Read 2 more answers