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3 years ago

Which equation is used to calculate the weight of an object on a planet?

Physics

2 answers:

kondaur [170]3 years ago

8 0

W=mg

Explanation:

the weight of an object on a planet is given by the law:

$W=mg$

where

m is the mass of the object

g is the value of the gravitational acceleration on the planet

While the mass of the object, m, depends only on the properties of the object (so, it is the same on every planet), the weight W, depends on the value of g, which is different from planet to planet, therefore the weight of an object changes if we move it to another planet.

Kamila [148]3 years ago

6 0

In this case to find the weight of an object you must use the formula.

W = mg

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What phase difference between two otherwise identical traveling waves, moving in the same direction along a stretched string, wi

Sergeu [11.5K]

Answer:

Ф = 142.674 degree

Ф = 2.490131057 rad

wavelength = 0.396316 λ

Explanation:

Given data

combined wave having an amplitude 0.64 times

to find out

answer in degrees, radians, and fraction of the wavelength

solution

let us consider these two wave equation

Asin(ωt) and the Asin (ωt + Ф)

and here Ф is phase difference

so we say

resultant wave is

Y = Asin(ωt) + Asin (ωt + Ф) = Asin(ωt + Ф/2) cos ( Ф/2)

so Y = A' sin(ωt + Ф/2)

we know that here resultant wave amplitude is 2A cos ( Ф/2)

put A= 0.64 A

so 2Acos ( Ф/2) = 0.64 A

and Ф/2 = 71.3370

Ф = 142.674 degree

Ф = 2.490131057 rad

so wavelength is 2.490131057 / 2π

wavelength = 0.396316 λ

5 0

3 years ago

The speed of sound in water is 1498 m/s. A sonar signal is sent straight down from a ship at a point just below the water surfac

olga2289 [7]

Answer:

The water is 1310.75 meters deep.

Explanation:

The question gives us the speed of sound and the time the sonar signal takes to travel to the bottom of the water and back.

To find out the distance, we should first divide the time in half, so we only consider the time taken for the sound to reach the bottom of the water body.

This means:

Time = 1.75 / 2 = 0.875 seconds

The distance traveled in this time is:

Distance = Speed * Time

Distance = 1498 * 0.875

Distance = 1310.75 meters

Thus, the water is 1310.75 meters deep.

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3 years ago

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Answer: