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3 years ago

A coastline on Earth experiences tides according to the graph below.

Physics

2 answers:

zloy xaker [14]3 years ago

6 0

Answer:

Its C, Mixed semidiurnal

Explanation:

Salsk061 [2.6K]3 years ago

5 0

Answer:

Most coastal areas, with some exceptions, experience two high tides and two low tides every lunar day (Ross, D.A., 1995). Almost everyone is familiar with the concept of a 24-hour solar day, which is the time that it takes for a specific site on the Earth to rotate from an exact point under the sun to the same point under the sun. Similarly, a lunar day is the time it takes for a specific site on the Earth to rotate from an exact point under the moon to the same point under the moon. Unlike a solar day, however, a lunar day is 24 hours and 50 minutes. The lunar day is 50 minutes longer than a solar day because the moon revolves around the Earth in the same direction that the Earth rotates around its axis. So, it takes the Earth an extra 50 minutes to “catch up” to the moon (Sumich, J.L., 1996; Thurman, H.V., 1994).

the answer is C

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Un diapasón vibra a 140 [Hz] y la onda emitida por él se propaga con una rapidez de 340 m/s.Considerando lo anterior, se puede a

Gnom [1K]

The question is: A tuning fork vibrates at 140 [Hz] and the wave emitted by it propagates with a speed of 340 m / s. Considering the above, it can be correctly stated that the wavelength of the wave emitted by the tuning fork is

Answer: Wavelength of the wave emitted by the tuning fork is 2.43 m.

Explanation:

Given: Frequency = 140 Hz

Speed = 340 m/s

wavelength = ?

Formula used to calculate the wavelength is as follows.

$\lambda = \frac{v}{f}$

where,

$\lambda$ = wavelength

v = speed

f = frequency

Substitute the values into above formula.

$\lambda = \frac{v}{f}\\= \frac{340 m/s}{140 Hz} (1 Hz = 1 s^{-1})\\= 2.43 m$

Thus, we can conclude that wavelength of the wave emitted by the tuning fork is 2.43 m.

5 0

3 years ago

The magnetic field is decreasing. What is the induced electric field?

melisa1 [442]

Answer: The induced electric field will be constant i.e zero

Explanation:

Magnetic field is a region of space where magnetic force can be felt while electric field is a region of space where electric force can be felt. This two field are related because they tend to talk about force of attraction and repulsion. Example is running a current through a thin wire near a magnet, the direction of one of the field will determine the direction of the other.

According to the question, if the magnetic field is decreasing, the electric field will adjust by traveling in opposite direction to the magnetic field just to make the field constant.

5 0

3 years ago

What is an area of physics that studies motion and its causes?

Solnce55 [7]

It's mechanics
sometimes: Newton's motion

6 0

3 years ago

I am looking for this answer :Which shows a correct order of steps in the scientific method?

ELEN [110]

Answer:

Explanation:

make observations, draw conclusions, develop a hypothesis, analyze data.

6 0

3 years ago

A particle undergoes two displacements. The first has a

Novay_Z [31]

First you need to draw the picture of the problem to better understand it. Like the one bellow.

In this task you have 2 sides of triangle and we can calculate angle between them. Angle between them is 120 - 35 = 85 degrees.

Once you have those 3 variables you can calculate third side of triangle using cosine law.
a - second displacement
b - first displacement
c- resultant displacement.

$a^{2} = b^{2}+ c^{2}-2*b*c*cos85$
now we just need to calculate this.
$a^{2} = 38439.458$
a = 196

now, we use cosine law again to find the angle between second and first displacement.
$\alpha = 45.36$ degrees

The angle marked with "?" in the graph is our direction angle. We will call it $\beta$

$\beta =90-30-45.36 = 14.64$

Second displacement has magnitude of 196 and a direction of -14.64 with positive x axis

3 0

3 years ago