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3 years ago

Name 3 examples of the Doppler Effect

Physics

1 answer:

sveta [45]3 years ago

5 0

Answer:

The drop in pitch of ambulance sirens as they pass by and the shift in red light are common examples of the Doppler Effect.

...

It is used in:

Sirens.

Astronomy.

Radars.

Medical imaging and blood flow management.

Flow management.

Velocity profile management.

Satellite communication.

Audio.

(It is so much but you can select three of them and write it)

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What is the density of iron if 5.0 cm3 has a mass of 39.5g

weqwewe [10]

Answer : $\rho = 7.9\ g/cm^3$

Explanation :

It is given that

Mass of iron, m = 39.5 g

Volume of iron, $V = 5\ cm^3$

So, density is :

density, $\rho =\dfrac{mass}{volume}$

$\rho =\dfrac{39.5g}{5cm^3}$

$\rho = 7.9\ g/cm^3$

7 0

4 years ago

Pand S waves are both

leva [86]

Answer:

3.body

Explanation:

Both P and S waves are both body waves. Body waves are waves that travels through the earth.

P and S waves are elastic seismic waves that moves within the earth. Love and Rayleigh waves are surface waves that travels through the surface.

P waves is also known as primary waves
S waves are known secondary waves.

These waves are the first set of waves to arrive a seismic station before the surface waves are picked up.

3 0

3 years ago

A toy car accelerates at 3 m/s2 for 2 seconds. Its final velocity is 15 m/s, What is its initial velocity?

Talja [164]

Answer:

can i have the toy car after your done asking questions with it

Explanation:

4 0

3 years ago

Which is the correct equation for the elastic potential energy stored in a spring

salantis [7]

(B)

Explanation:

$pe = \frac{1}{2} k {x}^{2}$

3 0

3 years ago

Calculate the power produced by a 12 V battery charger if it delivers:A. 10 A in the fast charge modeB. 2 A in trickle charge mo

Novay_Z [31]

The electric power (P) produced by an electric current (I) passing through a voltage (V) is given by the equation:

$P=VI$

If the battery charger works with a voltage of 12V, replace V = 12V into the equation, as well as the corresponding values for the electric current to find the power produced in each case.

A) I = 10A

Replace V=12V and I=10A to find the power produced in the fast charge mode:

$P=(12V)(10A)=120W$

B) Replace V=12V and I=2A to find the power produced in the trickle charge mode:

$P=(12V)(2A)=24W$

Therefore, the power produced by a 12V battery charger is equal to 120 Watts when it delivers 10A in fast charge mode, and 24 Watts when it delivers 2A in trickle charge mode.

3 0

1 year ago