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Vera_Pavlovna [14]
3 years ago
10

PLEASE HELP ME!! a police car moves at a speed of 30m / s, the driver is at a single-note frequency of 650Hz It is heard. One of

the police cars passes in front of someone waiting at the traffic light. approaching the other. a) approaching, b) moving away sirens wavelengths and frequencies You calculate.
Physics
1 answer:
irina [24]3 years ago
7 0

Explanation:

r u trapped by the traffic ..

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Which statements describe the motion of the object represented by the graph? Check all that apply.
bonufazy [111]

Answer:

The object is moving away from the origin

The object started at 2 meters

The object is traveling at a constant velocity

Explanation:

5 0
3 years ago
A cave explorer travels 3.00 m eastward, then 6.50 m northward, and finally 12.0 m westward. Find the magnitude of the net displ
mina [271]
<span>3 meters east and 15 meters west evens out to 12 meters west. the answer is 12 meters west
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3 years ago
Find an expression for the square of the orbital period.
jenyasd209 [6]

Answer:

T²= 4π²R³/GM

Explanation:

First we know that

Fg= Fc

Because centripetal force must equal gravitational force

So

GMm/R² = Mv²/R

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So by substitution we have

GMm/R²= M (2πR/T)/T

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8 0
3 years ago
HELP PLEASE !! THANKS
nlexa [21]

The answer is c, but I'm not sure, just so you know

4 0
3 years ago
(will give brainliest to whoever is first and gives reason) A mass is spun in a circle with a frequency of 40Hz. What is the per
Blizzard [7]

Answer:

\huge\boxed{T = 0.025\ seconds}

Explanation:

<u>Given:</u>

Frequency = f = 40 Hz

<u>Required:</u>

Time period = T = ?

<u>Formula:</u>

\sf T = 1 / f

<u>Solution:</u>

T = 1 / 40

T = 0.025 seconds

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
4 0
3 years ago
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