4 years ago

When air is blown across the top of an open

1 answer:

8 0

When air is blown across the top of an open <span>water bottle, air molecules in the bottle vibrate at a particular frequency and sound is produced in a process called "refraction".
</span>

You might be interested in

If a substance has an atomic mass of 20 and has an atomic number of 10, how many neutrons does this element have?

LiRa [457]

Explanation:

This element have 10 neutrons

7 0

3 years ago

There are two types of addiction, psychological and physical. A. True B. False

Alexus [3.1K]

It is true that there are two types of addiction, psychological and physical. When it comes to physical addiction, it normally refers to drug withdrawal or drug usage, when your body is exhibiting various symptoms of needing drugs. Mental addiction refers to when there is no actual need to use the object of addiction, but rather a mental desire to use it and have it again.

4 0

3 years ago

If a car is moved 10 meters and 3 Newtons of force is needed to move the car, what amount of work has been done?

Bingel [31]

Answer:

Work=30J

Explanation:

Work=F*x

F=3N

x=10m

Work=3*10=30J

3 0

3 years ago

A canon is tilled back 30.0 degrees and shoots a cannon ball at 155 m/s. What is the

Umnica [9.8K]

Answer:

$= \frac{(115^2)(\sin 30)^2}{2\times 9,8} \\\\= 168.7m$

Therefore, highest point that the cannon ball reaches is 168.7m

Explanation:

the cannon is fired at an angle 30 o to the horizonatal with a speed of 155 m/s

highest point that the cannon ball reaches?

$H_{max}=\frac{V^2\sin ^2 \theta}{2g}$

g = 9.8m/s2

$= \frac{(115^2)(\sin 30)^2}{2\times 9,8} \\\\= 168.7m$

Therefore, highest point that the cannon ball reaches is 168.7m

6 0

3 years ago

If the speed of an object decreases to one-half, what happens to its momentum?

meriva

D. It decreases to one half.

4 0

3 years ago