All categories

3 years ago

Jamie hears a high-pitched sound that then changes to a low-pitched sound. What is most likely occurring?

Physics

2 answers:

bulgar [2K]3 years ago

8 0

Answer: The answer is B, The Doppler Effect

Explanation:

netineya [11]3 years ago

3 0

Below are the choices that can be found from other source:

a. frequency
b. the Doppler effect
c. the resonance effect
d. intensity

The answer is B.

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.

You might be interested in

As the mass and distance between two objects decrease, so does the gravitational force exerted between them. true or false

marta [7]

I believe it's true,..hope this helps!

7 0

3 years ago

The area of a circular trampoline is 108.94 square feet. What is the radius of the trampoline? Round to the nearest hundredth.

djverab [1.8K]

The correct answer to this question is this one: B. 5.89 feet
The area of a circular trampoline is 108.94 square feet. The radius of the trampoline is 5.89 feet.

For a circle,
A = (pi)r^2
108.94 ft^2 = (pi)r^2
r^2 = (108.94 ft^2)/(pi)
r = sqrt(108.94/pi) ft
r = 5. 89 ft

8 0

3 years ago

Read 2 more answers

Paul is given assistance with finding a job and an apartment, and learning to correctly take his medications. Paul is most likel

o-na [289]

The answer is B. Insight therapy

6 0

4 years ago

A discus thrower turns with angular acceleration of 50 rad/s2, moving the discus in a circle of radius 0.80m. Find the radial an

anyanavicka [17]

Answer:

The value of tangential acceleration $\alpha_{t} =$ 40 $\frac{m}{s^{2} }$

The value of radial acceleration $\alpha_{r} = 80 \frac{m}{s^{2} }$

Explanation:

Angular acceleration = 50 $\frac{rad}{s^{2} }$

Radius of the disk = 0.8 m

Angular velocity = 10 $\frac{rad}{s}$

We know that tangential acceleration is given by the formula $\alpha_{t} =$ $r \alpha$

Where r = radius of the disk

$\alpha$ = angular acceleration

⇒ $\alpha_{t} =$ 0.8 × 50

⇒ $\alpha_{t} =$ 40 $\frac{m}{s^{2} }$

This is the value of tangential acceleration.

Radial acceleration is given by

$\alpha_{r} = \frac{V^{2} }{r}$

Where V = velocity of the disk = r $\omega$

⇒ V = 0.8 × 10

⇒ V = 8 $\frac{m}{s}$

Radial acceleration

$\alpha_{r} = \frac{8^{2} }{0.8}$

$\alpha_{r} = 80 \frac{m}{s^{2} }$

This is the value of radial acceleration.

7 0

4 years ago

Which person would experience the greatest force of impact in a sudden collision? A 200 lb. man traveling 20 mph b 150 lb. woman

Alisiya [41]

Answer:

The 150 lb woman at 30 mph would experience the greatest force of impact in a sudden collision.

Explanation:

Momentum

The force of impact exerted on an moving object that suddenly stops or changes its movement is measures by the physics magnitude called Impulse, which can be computed with the formula

$I=F.t$

Where F is the force and t is the time that force acts to produce the impact on the object. The impulse is also defined as the change in the momentum of the object:

$I=\Delta p=p_2-p_1$

Or equivalently

$I=m(v_2-v_1)$

The question describes four situations where different persons and object suffer impact that make them stop from their moving state. Thus $v_2=0$ and the impulse is