How do you find component velocities of parallel vectors?

Physics

1 answer:

Vaselesa [24]3 years ago

5 0

Answer:

Velocity is a vector (it has magnitude and direction), so the overall velocity of an object can be found with vector addition of the x and y components: v2 = vx2 + vy2. The units to express the horizontal and vertical distances are meters (m).

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What is the primary source of a sound?

brilliants [131]

Answer:

A vibration is the primary source of a sound.

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3 years ago

Energy of fossil fuel is also derived from solar energy why

zzz [600]

Explanation:

All the energy in oil, gas, and coal originally came from the sun captured through photosynthesis. In the same way that we burn wood to release energy that trees capture from the sun, we burn fossil fuels to release the energy that ancient plants captured from the sun.

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The surface area of a material is a factor that affects heat conductivity. Does heat flow faster through a large surface area or

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3 years ago

"will isabella be able to spray ferdinand if the water is flowing out of the hose at a constant speed v 0 of 3.5 meters per seco

Lyrx [107]

The question is incomplete.

Here is the complete question (only part A):

Two children, Ferdinand and Isabella, are playing with a water hose on a sunny summer day. Isabella is holding the hose inher hand 1.0 meters above the ground and is trying to spray Ferdinand, who is standing 10.0 meters away.
Part A

Will Isabella be able to spray Ferdinand if the water is flowing out of the hose at a constant speed Vo of 3.5 meters per second? Assume that the hose is pointed parallel to the ground and take the magnitude of the acceleration due to gravity to be 9.81 meters per second, per second.

Answer: No. Since the water jet runs 1.58 m before falling into the ground, it cannot spray Ferdinand who is 10.0 m away.

Explanation:

1) Data:
yo = 1.0m
Vox = 3.5 m/s
Voy = 0
x = 10.0 m

g = 9.81 m/s²

2) Type of motion and formulas

Parabolic motion
y = yo + Voy×t - g×t² / 2
x = Vox × t

3) Solution:

i) From y = yo + Voy×t - g×t² / 2 calculate t until the water reaches the ground (y = 0).

From the data yo = 1, and Voy = 0

0 = 1.0 - 4.905t² ⇒ t = √ (1.0 / 4.905) = 0.45 s

ii) Calculate x using t = 0.45s

From the data Vox = 3.5m/s

x = Vox × t = 3.5m/s × 0.45s = 1.58 m

iii) Conclusion: since the water jet runs 1.58 m before falling into the ground, it cannot spray Ferdinand who is 10.0 m away.

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3 years ago

1. The diagram below shows the range of wavelengths that make up each color of visible light. The wavelengths are shown in nanom

ddd [48]

1) The color with shortest wavelength is violet

2) Ultraviolet light has a longer wavelength than C) x-rays but a shorter wavelength than D) visible light

Explanation:

Electromagnetic waves consist of oscillations of the electric and the magnetic field in a plane perpendicular to the direction of motion the wave.

Electromagnetic waves are normally invisible to human eye, except for a small portion of the spectrum, called "visible part" or "visible light". The light having wavelengths ranging in this part of the spectrum is perceived by our eye as different colors, depending on its wavelength. In particular, the following colors are associated to the following wavelengths, as we can see from the picture:

Violet: 380-450 nm
Blue: 450-495 nm
Green: 495-570 nm
Yellow: 570-590 nm
Orange: 590-620 nm
Red: 620-750 nm

From this list, we can see therefore that the color with shortest wavelength is the violet.

As we said previously, most of the electromagnetic waves are invisible to the human eye. In fact, electromagnetic waves are classified into 7 different types, according to their wavelength/frequency. From shortest to longest wavelength (and so, from highest to lowest frequency), we have:

Gamma rays