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2 years ago

Which three workers uses technologies that apply the Doppler effect

Physics

2 answers:

JulsSmile [24]2 years ago

7 0

The ambulance is an example of the Doppler effect.

ladessa [460]2 years ago

5 0

Answer:

The technology was also widely employed in fighter aircraft during the 1960s. It is also used in air traffic control systems to pick out aircraft from clutter. Pulse-Doppler RADAR is also the basis of synthetic aperture RADAR that is commonly used in RADAR astronomy, remote sensing, and mapping.

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At the 1 s mark, which objects have equal momentum?

Rudik [331]

C. The bowling ball and the bicycle

p = mv
P of bike = 12x5 = 60
P of rock = 2x20 = 40
P of ball = 5 x 10 = 60

3 0

2 years ago

Mia plays soccer for her high school team. generally, they start practice by stretching. what kind of stretching should they do

Keith_Richards [23]

Mia plays soccer for her high school team. generally, they start practicing by stretching. The kind of stretching should they do before they are warmed up is Dynamic Stretching

Dynamic Stretching consists of techniques that involve active stretching to reduce force and its negative effects. Muscles are stimulated and made ready for usage during exercise by dynamic stretching.

Dynamic stretching not only stretches the muscles and tissues but also activates and warms up the muscles to get them ready for action.

We require our muscles' flexibility to maintain the range of motion in our joints, so stretching keeps them strong, flexible, and healthy. The muscles shorten and tighten without it. The muscles are then weak and unable to fully expand when you want them to work.

Learn more about dynamic stretching here

brainly.com/question/14635799

#SPJ4

8 0

1 year ago

Matthew throws a ball straight up into the air. It rises for a period of time and then begins to drop. At which points in the ba

PolarNik [594]

Answer:

If air resistance is taken as negligible, then the ball is in freefall the moment it is thrown so gravity is the only force acting on the object. If air resistance is not negligible then gravity will be the greatest force acting on the ball while it is going up and coming down, because Fair has to be less than gravity at all times otherwise the atmosphere would wither away.

3 0

3 years ago

A bicycle has tires of radius 0.35 meters. If the bicycle is traveling at a constant speed of 7.8 m/s, at approximately what ang

lord [1]

22.3 rad/s

<h3>Further explanation</h3>

We will solve the question of uniform circular motion.

<u>Given:</u>

A bicycle has tires of radius $\boxed{ \ R = 0.35 \ meters \ }$
The bicycle is traveling at a constant speed of $\boxed{ \ v = 7.8 \ m/s \ }$

<u>Question:</u>

What angular speed are the tires rotating?

<u>The Process:</u>

Speed, angular speed, and radius are connected in the following formula:

$\boxed{\boxed{ \ v = \omega R \ }}$

The angular speed is worked out by

$\boxed{ \ \omega = \frac{v}{R} \ }$

All units are in the SI system so let us calculate the angular speed.

$\boxed{ \ \omega = \frac{7.8 \ m/s}{0.35 \ m} \ }$

Thus the value of the angular velocity of the rotating tire is $\boxed{\boxed{ \ \omega = 22.3 \ rad/s \ }}$

<u>An additional question:</u>

What is the frequency of tire rotation?

Recall this formula: $\boxed{ \ \omega = 2 \pi f \ } \rightarrow \boxed{ \ f = \frac{\omega}{2 \pi} \ }$

$\boxed{ \ f = \frac{22.3 \ rad/s}{2 \pi} \ }$

We get $\boxed{\boxed{ \ f = 3.55 \ Hz \ }}$

<h3>Learn more</h3>

Arc CD is ²/₃ of the circumference of a circle. What is the radian measure of the central angle? brainly.com/question/2115496
A triangle is rotated 90° about the origin brainly.com/question/2992432
Particle's speed and direction of motion brainly.com/question/2814900

Keywords: a bicycle has tires of radius 0.35 meters. traveling, at a constant speed of 7.8 m/s, at approximately, angular speed, the tires rotating

7 0

3 years ago

Molecules have properties that are different than ____________that form them

solmaris [256]

Isn't it elements cuz molecules are made only out of elements. So that will be the only right answer that is available.

5 0

3 years ago

Read 2 more answers