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3 years ago

What does EMR tell us about wavelength, amplitude, and frequency?

Physics

1 answer:

Georgia [21]3 years ago

5 0

Answer:

Amplitude is one-half the height of the wave from peak to trough. Wavelength and frequency are inversely proportional: As the wavelength increases, the frequency decreases.

I hope this helps in a way...

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A stone thrown horizontally from a height of 5.72 m hits the ground at a distance of 13.30 m. Calculate the initial speed of the

kakasveta [241]

Answer:

initial velocity=12.31 m/s

Final speed= 16.234 m/s

Explanation:

Given Data

height=5.72 m

distance=13.30 m

To Find

Initial Speed=?

Solution

Use the following equation to determine the time of the stone is falling.

d = vi ×t ½ ×9.8 × t²

Where

d = 5.72m and vi = 0 m/s

5.72 = ½× 9.8 ×t²

t = √(5.72 ÷ 4.9)

t=1.08 seconds

To determine the initial horizontal velocity use the following equation.

d = v×t

13.30 = v ×1.08

v = 13.30 ÷ 1.08

v=12.31 m/s

To determine stone’s final vertical velocity use the following equation

vf = vi+9.8×t............vi=0 m/s

vf = 9.8×1.08

vf= 10.584 m/s

To determine stone’s final speed use the following equation

Final speed = √[Horizontal velocity²+Final vertical velocity²]

Final speed = √{(12.31 m/s)²+(10.584 m/s)²}

Final speed= 16.234 m/s

3 0

4 years ago

Learning good work ethics will help you develop _____.

Pavel [41]

Answer:

a sense of industry

Explanation:

I just had this question and got it right

3 0

3 years ago

A pitcher exerts 100.0 N of force on a ball with a power output of 4,500 W. What is the velocity of the ball? 0.02 m/s, 45 m/s,

OverLord2011 [107]

Power is defined as the amount of work over a certain amount of time. Work is also Force times the distance traveled. Simplifying the expression makes it Power=Force x Velocity. Since we are given that the power is 4500 W and the force is 100 N, dividing the Power by force gives 45 m/s, which is the velocity of the ball.

6 0

3 years ago

Check out the map showing tornado alley in the U.S. Although tornadoes can occur anywhere, they are most likely to occur when wh

Lyrx [107]

The answer is A bc when warm, moist air from the Gulf of Mexico and cool and dry air from Canada

8 0

4 years ago

A particle on the x-axis is moving to the right at 2 units per second. At a certain instant it is at the point (5,0). How rapidl

koban [17]

Answer:

dr/dt = 1.94 units per second

Explanation:

A particle is moving on the x-axis to the right at 2 u/s.

To know how is changing the distance of the particle respect to the point (0,9), on the y-axis, you first take into account that the distance between charge and a point over the y-axis is given by:

$r^2=x^2+y^2$ (1)