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4 years ago

How does an ocean wave transfer energy across the ocean?

1 answer:

3 0

The energy travels in a disturbance, in an ocean that disturbance is a wave, so the wave makes energy and moves it through the water

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Clouds dump around 100 billion gallons of water on rainforests each year. How much rain is evaporated from the rivers, lakes and

posledela

The correct answer is this one: "D) significantly more than 100 billion gallons ." Clouds dump around 100 billion gallons of water on rainforests each year. The amount of rain is evaporated from the rivers, lakes and surface of rainforests each year is significantly more than 100 billion gallons

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4 years ago

Read 2 more answers

A cart on a horizontal, linear track has a fan attached to it. The cart is positioned at one end of the track, and the fan is tu

kompoz [17]

Answer:

$F = 0.0566 \ N$

$t = 6.147 \ s$

Explanation:

From the question we are told that

The distance travel in 4.22 s is $s = 1.44 \ m$

The mass of the cart plus the fan is $m = 350 \ g = 0.35 \ kg$

Generally from kinematic equation we have that

$s = ut + \frac{1}{2} * a * t^2$

Here u is the initial velocity with value $u = 0 \ m/s$

$1.44= 0 * t + \frac{1}{2} * a * 4.22^2$

=> $a = 0.1617 \ m/s^2$

Generally the net force is

$F = m * a$

=> $F = 0.35 * 0.1617$

=> $F = 0.0566 \ N$

Gnerally the new mass of the cart plus the fan is $M = 656 \ g = 0.656 \ kg$

The distance considered is $s_1 = 1.63 \ m$

Generally the new acceleration of the cart is mathematically represented as

$F = M * a_1$

=> $a_1 = \frac{F}{M}$

=> $a_1 = \frac{0.0566}{0.656}$

=> $a_1 = 0.08628 \ m/s^2$

Gnerally from kinematic equation we have

$s = ut + \frac{1}{2} * a_1 * t ^2$

Here u is the initial velocity and the value is zero because it started from rest

=> $1.63 = 0 * t + \frac{1}{2} * 0.08628* t ^2$

=> $t = 6.147 \ s$

6 0

3 years ago

How does frequency and pitch affect sound

aleksandr82 [10.1K]

The word that musicians use for frequency is pitch. The shorter the wavelength, the higher the frequency, and the higher the pitch, of the sound. In other words, short waves sound high; long waves sound low.

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3 years ago

Which of the following best explains how the Ptolemy’s (geocentric) and Copernicus’s (heliocentric) models of the solar system d

TiliK225 [7]

Answer:

The correct answer is c

Explanation:

In these two different models of movement of the planets

Ptolemy raises the Earth as the center of the solar system

In the Copernicus system, it poses the Sun as the center of the solar system.

Copernicu's system was accepted for giving a simpler and more complete explanation of the problem

The correct answer is c

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4 years ago

A hydrogen atom contains a single electron that moves in a circular orbit about a single proton. Assume the proton is stationary

riadik2000 [5.3K]

Answer:

Radius between electron and proton $= 6.804\times 10^{-10}m$

Explanation:

The motion of the electron is carried out in the orbit due to the balancing of the electrostatic force between the proton and the electron and the centripetal force acting on the electron.

The electrostatic force is given as = $\frac{kq_1q_2}{r^2}$