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3 years ago

Someone please help me with this math problem, and please show the work

Mathematics

1 answer:

hram777 [196]3 years ago

3 0

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If you are 600 m from a batter when you see him hit a ball, how long will you wait to hear the sound of the bat hitting the ball

Molodets [167]

Answer:

The speed of sound at 20°C is 343.42 m/s.

You have to wait 1.75 seconds to hear the sound of the bat hitting the ball

Step-by-step explanation:

Speed of Sound

The speed of sound is not constant with temperature. Generally speaking, the greater the temperature, the greater the speed of sound.

The approximate speed of sound in dry air at temperatures T near 0°C is calculated from:

$\displaystyle v_{\mathrm {s} }=(331.3+0.606\cdot T )~~~\mathrm {m/s}$

The air is at T=20°C, thus the speed of sound is:

$\displaystyle v_{\mathrm {s} }=(331.3+0.606\cdot 20 )~~~\mathrm {m/s}$

$v_{\mathrm {s} }=343.42\ m/s$

The speed of sound at 20°C is 343.42 m/s.

To calculate the time to hear the sound after the batter hits the ball, we use the formula of constant speed motion:

$\displaystyle v=\frac{d}{t}$

Where d is the distance and t is the time. Solving for t:

$\displaystyle t=\frac{d}{v}$

Substituting the values v=343.42 m/s and d=600 m:

$\displaystyle t=\frac{600}{343.42}$

t = 1.75 s

You have to wait 1.75 seconds to hear the sound of the bat hitting the ball

6 0

3 years ago

in a game using two dice, a person wins if the outcome is a prime number. Find the probability of winning.

AlexFokin [52]

Answer:

45% I think because prime numbers are 5/ the 11 possible numbers when rolling two die

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3 years ago

Zarrin [17]

Answer:

Step-by-step explanation:

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Alex drew a shape that belongs to both the category of rhombuses and the category of rectangles. Alex said the most specific nam

Nina [5.8K]

Answer:

yes because a rhombus and a rectangle are counted as a quadrilateral because they have 4 sides

Step-by-step explanation:

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What is the probability of rolling a product of 30 when rolling 2 six sided number cubes?

serg [7]

The only two dice you can roll and multiply to get 30 are a five and a six. Thus, you get $\frac{2}{36}$

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