All categories

2 years ago

A vector has a magnitude of 82 m

Physics

1 answer:

pentagon [3]2 years ago

7 0

The Y-component of the vector is 34.65 m.

<h3>What is a vector?</h3>

Vectors are quantities that have both magnitude and direction.

The Y-component of the vector can be calculated using the formula below.

Formula:

Y = rsin∅............. Equation 1

Where:

Y = Y-component of the vector
r = magnitude of the vector
∅ = angle of the vector to the horizontal.

From the question,

Given:

r = 82 m
∅ = 25°

Substitute these given values into equation 1

Y = 82(sin25°)
Y = 34.65 m

Hence, The Y-component of the vector is 34.65 m.
Learn more about vectors here: brainly.com/question/24855749

You might be interested in

Which statement about the mass and the weight of an object is correct?

Fantom [35]

Answer:

HOPE IT HEPLED U !!!!

Explanation:

i think it's (C) They have different units ....

8 0

3 years ago

Which is the average acceleration during the time Interval 0 seconds 10 seconds?

weqwewe [10]

Average acceleration = (change in speed) / (time for the change)

In this case . . .

Average acceleration = (speed at the end - speed at the beginning)/10sec.

We can't be any more specific without knowing the difference
between the beginning speed and the ending speed.

3 0

3 years ago

Question #1: The visible part of the EM spectrum ranges from about 390 nanometers to about 720 nanometers. A nanometer (nm) is 1

mojhsa [17]

Answer:

The blue light has the highest energy.

Explanation:

Body that is hot enough emits light as consequence of its temperature. For example, an iron bar in contact with fire will start to change colors as the temperature increases until it gets to a blue color. That its know as Wien's displacement law, which establishes that the peak of emission for the spectrum will be displaced to shorter wavelengths as the temperature increases.

The same scenario described above can be found in the star, a star with higher temperature will have a blue color and one with lower temperature will have a red color.

$T = \frac{2.898x10^{-3} m. K}{\lambda max}$ (1)

The energy of each wavelength can be determined by means of the following equation:

$E = h\nu$ (2)

but $\nu = \frac{c}{\lambda}$ , therefore:

$E = \frac{hc}{\lambda}$ (3)

Where h is the planck's constant and $\nu$ is the frequency.

Notice that it is necessary to express the frequency in units of meters for a better representation of the energy.

$\nu_{blue} = 400nm . \frac{1x10^{-9}m}{1nm}$ ⇒ $4x10^{-7}m$

$\nu_{red} = 720nm . \frac{1x10^{-9}m}{1nm}$ ⇒ $7.2x10^{-7}m$

Case for the bluest light:

$E = \frac{(6.626x10^{-34}J.s)(3x10^{8}m/s)}{4x10^{-7}m}$

$E = 4.96x10^{-19}J$

Case for the reddest light:

$E = \frac{(6.626x10^{-34}J.s)(3x10^{8}m/s)}{7.2x10^{-7}m}$

$E = 2.76x10^{-19}J$

Equation 3 show that if the wavelength is lower the energy will be greater (inversely proportional).

Hence, according with the result and what was explained above, the blue light has the highest energy.

7 0

3 years ago

Explain the difference between a conductor and an insulator. Give two examples of each.

docker41 [41]

There are different kinds of conductors, most notably electrical and thermal conductors. But they are often inclusive of each other (electrical conductors are typically good thermal conductors). A conductor transmits something through its body with high efficiency while an insulator does not transmit very well. In the case of electricity, a conductor transmits electrical energy between two points while an insulator blocks the flow of electricity. Two examples of conductors are copper and silver. Two examples of insulators are wood and styrofoam.

3 0

3 years ago

An astronaut on the moon pushes with her left hand on a small rock and with her right hand on a large rock. Each hand pushes wit

trapecia [35]

Both would go 15N. Hoped I helped!

7 0

3 years ago

Read 2 more answers