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3 years ago

In the formula vy = ayt, what is the value of ay for an object in projectile motion?

Physics

2 answers:

Sergeu [11.5K]3 years ago

8 0

–9.8 m/s2

Just took it and got it right!

Deffense [45]3 years ago

6 0

Answer : The correct option is (A) $-9.8\ m/s^2$

Explanation :

The formula is given as :

$v_y=a_yt$

Where,

$v_y$ is vertical component of velocity.

$a_y$ is the vertical component of acceleration.

In a projectile motion, the particle moves in a path under the influence of gravity.

So, the vertical component of acceleration is -g i.e acceleration due to gravity.

Hence, the correct option is (a) " $a_y=-9.8\ m/s^2$ ".

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3 years ago

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3 years ago

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ohaa [14]

Answer:

2.83 m

Explanation:

The relationship between frequency and wavelength for an electromagnetic wave is given by

$\lambda=\frac{c}{f}$

where

$\lambda$ is the wavelength

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For the FM radio waves in this problem, we have:

$f_1=89 MHz=89\cdot 10^6 Hz$ is the minimum frequency, so the maximum wavelength is

$\lambda_2=\frac{c}{f_1}=\frac{3\cdot 10^8}{89\cdot 10^6}=3.37 m$

The maximum frequency is instead

$f_2=106 MHz=106\cdot 10^6 Hz$

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3 years ago

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