2 years ago

A sound source producing 1.00 kHz waves moves toward a stationary listener at one-half the speed of sound.

Physics

1 answer:

SIZIF [17.4K]2 years ago

5 0

Answer:

2000Hz and 1500Hz

Explanation:

Using

a) f = f0((c+vr)/(c+vs))

=>>> f0((c)/(c-0.5c))

=>>>1000/0.5 = 2000Hz

b) f = f0((c+vr)/(c+vs))

=>>>f0((c+0.5c)/(c))

=>>>>1000 x 1.5 = 1500Hz

You might be interested in

A fairground ride consists of a large vertical drum that spins so

expeople1 [14]

Answer:

v = 3.84 m/s

Explanation:

In order for the riders to stay pinned against the inside of the drum the frictional force on them must be equal to the centripetal force:

$Centripetal\ Force = Frictional\ Force\\\\\frac{mv^2}{r} = \mu R = \mu W\\\\\frac{mv^2}{r} = \mu mg\\\\\frac{v^2}{r} = \mu g\\\\v = \sqrt{\mu gr}$

where,

v = minimum speed = ?

g = acceleration due to gravity = 9.81 m/s²

r = radius = 10 m

μ = coefficient of friction = 0.15

Therefore,

$v=\sqrt{(0.15)(9.81\ m/s^2)(10\ m)}$

v = 3.84 m/s

6 0

2 years ago

500 J of work are done in 4 seconds to lift a 40 kg box to the top of a high shelf. How much power was required to complete the

Artemon [7]

Answer:

125 W

Explanation:

Power = work / time

P = 500 J / 4 s

P = 125 W

5 0

2 years ago

The distance from point a to point b is known as

mezya [45]

Answer:

Explanation:

5 0

1 year ago

Read 2 more answers

PLSSS HELPPPPPM ,MEEEE FOR 25 POINTS PLSSSSSSSSSS

aalyn [17]

If you have any questions or conserns check my Read more on Brainly - brainly.com/sf/question/2773056

5 0

2 years ago

Which of the following statements is "true" of imagined risks?

Leno4ka [110]

I think its A- They're unaffected by positive self talk

4 0

2 years ago