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Semmy [17]
3 years ago
6

About how long does it take for sound to travel 1 Km?

Physics
1 answer:
viktelen [127]3 years ago
4 0
It would take roughly 3 seconds.
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A baseball is thrown horizontally with an initial speed of 10 m/s from the edge of a cliff. A stop watch measures the stone's ti
Oksana_A [137]

Complete Question

A baseball is thrown horizontally with an initial speed of 10 m/s from the edge of a cliff. A stop watch measures the ball's time in the air until it hits the ground to be 4.3 s. How far does the baseball travel horizontally?

Answer:

The distance covered horizontally is  d =  43 \ m

Explanation:

From the question we are told that

     The initial horizontal velocity is  u = 10 \ m/s

     The time taken by the ball in the air is  t = 4.3 \ s

Generally the distance traveled by the ball is  

       d =  u  *  t

=>     d =   10 * 4.3

=>     d =  43 \ m

8 0
3 years ago
Which is a better conductor, a flagpole or a flag? Why?
Novosadov [1.4K]

Answer:

flagpole

Explanation:

if it is about electricity then its flagpole

4 0
3 years ago
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How does an octopus or a squid uses Newton's third law of motion to escape from enemies
Sloan [31]
I think everytime they swim away, the water pushes the enemy back, which makes the octopus go faster. Every action has an equal and opposite reaction. Hope this helps.
4 0
3 years ago
Two UFPD are patrolling the campus on foot. To cover more ground, they split up and begin walking in different directions. Offic
miss Akunina [59]

Answer:

0.256 hours

Explanation:

<u>Vectors in the plane </u>

We know Office A is walking at 5 mph directly south. Let X_A be its distance. In t hours he has walked

X_A=5t\ \text{miles}

Office B is walking at 6 mph directly west. In t hours his distance is

X_B=6t\ \text{miles}

Since both directions are 90 degrees apart, the distance between them is the hypotenuse of a triangle which sides are the distances of each office

D=\sqrt{X_A^2+X_B^2}

D=\sqrt{(5t)^2+(6t)^2}

D=\sqrt{61}t

This distance is known to be 2 miles, so

\sqrt{61}t=2

t =\frac{2}{\sqrt{61}}=0.256\ hours

t is approximately 15 minutes

3 0
3 years ago
A boy exerts an unknown horizontal force as he pulls a 52 N sled across packed snow. The coefficient of friction is 0.12. If a p
Tems11 [23]

Answer:

is there a pic?

Explanation:

7 0
2 years ago
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