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stepan [7]
3 years ago
10

A wave traveling in water has a frequency of 250 Hz and a wavelength of 6.0 m. What is the speed of the wave

Physics
1 answer:
Aleks04 [339]3 years ago
7 0
Speed of wave = frequency x wavelength
                        =     250 x 6 = 1500 m/s.
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It's possible for a determined group of people to pull an aircraft. Drag is negligible at low speeds, and the only force impedin
gogolik [260]

Answer:

F_o = 890.67 N

Explanation:

initial speed of the aircraft = 0

it covers a distance = 100 m

time taken by it = 53 s

so we will have

d = v_i t + \frac{1}{2}at^2

100 = 0 + \frac{1}{2}a(53^2)

a = 0.071 m/s^2

now we know that there are two forces on the aircraft

1) applied force in forward direction

2) friction force in opposite direction

so we will have

F - \mu mg = ma

F - (0.02)(200,000)(9.81) = 200,000(0.071)

F = 39,240 + 14,200

F = 53440 N

so net force by 60 officers is 53440 N

so force due to each officer is given as

F_o = \frac{53440}{60} = 890.67 N

3 0
3 years ago
A satellite is orbiting the Earth in a circular orbit of radius r. Its frequency is independent of its height above the surface
Pie

Answer:

a. TRUE

Explanation:

When a satellite is launched to orbit around earth, it has to produce its own artificial gravity by performing rotations. The frequency of this rotation is given by the following formula:

f = √[ac/4πR²]

where,

f = frequency

ac = centripetal acceleration

R = Radius of the satellite

Therefore, it is clear from this formula that the frequency of rotation of the satellite is independent of its height above the surface of earth. So, the correct option is:

<u>a. TRUE</u>

5 0
3 years ago
What occurs when an object travels in a curved path
KengaRu [80]
There must be a centripetal force to move the object move in a curve path.
5 0
3 years ago
Read 2 more answers
A 5 kg toy is tied to a rope where the tension measures 150 N. What is the weight of the object?
elena-s [515]
Formula from physics to get the answer.
4 0
3 years ago
What happens to the particles of a liquid when energy is removed from them?
KonstantinChe [14]

Answer:

D: The distance between the particles decreases

Explanation:

Taking away energy slows down molecules, like how you slow down when you are cold (I think)

3 0
4 years ago
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