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antiseptic1488 [7]
3 years ago
9

How does the Doppler effect cause a siren's pitch to increase as it

Physics
1 answer:
yarga [219]3 years ago
3 0

Answer:

C

Explanation:

Because I said so

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Two forces act on a 41-kg object. One force has magnitude 65 N directed 59° clockwise from the positive x-axis, and the other ha
Genrish500 [490]

Answer:

a = 1.41 m/s²

Explanation:

Given that

mass ,m= 41 kg

F₁ = 65 N , θ = 59°

F₂ = 35 N ,θ = 32°

The component of Force F₁

F₁x= F₁cos59° i

F₁x= 65 x cos59° i = 33.47 i

F₁y= - F₁ sin 59° j

F₁y= - 65 x sin 59° j = - 55.71 j

The component of Force F₂

F₂x= F₂ sin 32° i

F₂x= 35 x sin 32° i = 18.54 i

F₂y=  F₂ cos 32° j

F₂y=  35 x cos 32° j =  29.68 j

The total force F

F= 33.47 i +   18.54 i - 55.71 j +   29.68 j

F= 52.01 i - 26.03 j

The magnitude of the force F

F=\sqrt{52.01^2+26.03 ^2}\ N

F=58.16 N

We know that

F= m a

a= Acceleration

m=mass

58.16 = 41 x a

a = 1.41 m/s²

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4 years ago
How are science and technology related?
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An object's mass refers to _____ and an object's weight refers to _____. Fill in each blank.
mamaluj [8]

Answer:

c

Explanation:

because the more mass it has the more dense it is

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3 years ago
Explain why an electromagnetic wave is a transverse was and not a compressional wave
arlik [135]
Electromagnetic waves are transverse because the particles that are moving are perpendicular to the wave motion while compressional (also known as longitudinal) wave particles move parallel to the wave motion
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State the mathematical form of universal law of gravitation
Andrew [12]

Answer:

Newton's Universal Law of Gravitation: 'a simple equation, but devastatingly effective'. ... The equation says that the force (F) between two objects is proportional to the product of their masses (m1 and m2), divided by the square of the distance between them.

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