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3 years ago

The pressure of moving air is callled

Physics

1 answer:

TEA [102]3 years ago

7 0

Answer:

This moving air is called wind. Winds are created when there are differences in air pressure from one area to another.

Explanation:

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A pumpkin pie in a 9.00 in diameter plate is placed upon a rotating tray. Then, the tray is rotated such that the rim of the pie

Ghella [55]

Answer:

Explanation:

Given that,

Pie diameter = 9 in

Then, the circumference of the pie is

P = πd = 9π in

Then rim of the pie rotates 233 in,

Then,

1 Revolution of the pie is 9π in,

So, for 233 in, we will have

233 in / 9π in revolution

8.24 revolution

So, the revolution of the pie is 8.24

1 revolution is 2πrad

Then,

8.24 revolution = 8.24 × 2π = 51.78 rad.

And also, 1 revolution is 360°

Then,

8.24 revolution = 8.24 × 360 = 2966.4°

So,

In revolution, θ = 8.24 revolution

In radian = θ = 57.78 rad

In degree θ = 2966.4°

5 0

3 years ago

An aircraft is moving horizontally with a speed of 50m/s, at the height of 2km, an object is dropped from the aircraft. What is

posledela

Explanation:

use the diagram^

horizontal velocity of the object nvr changes, it'll stay 50m/s till it hits the ground

initial vertical velocity = 0

to find the final vertical velocity, use the formula:

$v {}^{2} = u {}^{2} + 2as$

where u = 0m/s, a = 9.8m/s², and s = 2000m

solve for v.

for time taken to reach ground, use the formula:

$v = u + at$

where v = the value for v u calculated above, u = 0 m/s, a = 9.8m/s² and solve for t.

7 0

3 years ago

The _________ of a line is defined as its rise divided by its run.

Alexeev081 [22]

Answer:

This is the definition of slope.

Step-by-step explanation:

The formula for slope is:

m(slope) = (y2 - y1)/(x2 - x1)

This shows the difference in y, which is rise, divided by the different in x, or run.

3 0

4 years ago

Read 2 more answers

What is the science behind snorkeling

Feliz [49]

hope this help you out

8 0

4 years ago

A mother hawk screeches as she dives at you. You recall from biology that female hawks screech at 785 Hz , but you hear the scre

Ludmilka [50]

Answer:

Speed of the hawk, v = 40.4 m/s

Explanation:

It is given that,

Exact frequency of the female, f = 785 Hz

Observed frequency of female, f' = 890 Hz

Speed of sound, v = 343 m/s

Let v' is the speed of the hawk. It is based on the concept of Doppler's effect. We know that when the object approaches you, its speed is given by :

$f'=f(\dfrac{v}{v-v'})$

$890=785\times (\dfrac{343}{343-v'})$

v' = 40.4 m/s

So, the speed of the hawk is 40.4 m/s. Hence, this is the required solution.

6 0

4 years ago