Which statement does not describe the relationship between genes and

Beats are the difference in (a) Frequency (b) Amplitude (c) Intensity (d) None

sasho [114]

Answer:

Beats are the difference in frequency.

(a) is correct option.

Explanation:

Beat :

Beat is the difference of the frequency of two waves.

The difference in frequency is equal to the number of beat per second.

Amplitude :

Amplitude of the wave is the maximum displacement.

Frequency :

Frequency is the number oscillations of wave in per second.

Intensity :

Intensity is the power per unit area.

Hence, Beats are the difference in frequency.

7 0

3 years ago

Points A and B lie within a region of space where there is a uniform electric field that has no x- or z-component; only the y-co

liraira [26]

Answer:

(a) Ey is negative

(b) The magnitude of the electric field is E = 171.429 V/m

(c) The potential difference between points B and C is 17.1429 V

Explanation:

(a) Here, we have the potentials given by;

$V_A - V_B = +12.0V$ with point A at y = 8.00 cm and point B at point y = 15.0 cm

where point B is at a higher potential than point A, that is the electric potential is from;

B with y = 15.0 cm to A with y = 8.0 cm which means

$E_y$ decreases as y increases or $E_y$ is negative.

(b) The magnitude of the electric field is given by

The work done to move a charge from B to A is

$W_{BA} = - \Delta U$ where

$\Delta U = U_a -U_b = q_0E(y_b-y_a)$

$V_{BA} = \frac{\Delta U}{q_0} = \frac{q_0E(y_b-y_a)}{q_0} = E(y_b-y_a)$

∴ $E = \frac{V_{BA}}{(y_b-y_a)}$

$E = \frac{12 \hspace{0.09cm}V}{(0.015\hspace{0.09cm} m -0.008\hspace{0.09cm} m)}$

E = 171.429 V/m

(c) Here we have point C x = 5.00 cm and y = 5.00 cm

Therefore we have the distance from B to C given by

$y_b-y_c = 15.00 \hspace{0.09cm}cm - 5.00 \hspace{0.09cm}cm = 10.00 \hspace{0.09cm} cm$

Where 10.00 cm = 0.01 m

E = V/Δy

Therefore, V = Δy·E

For $V_{BC}$ , Δy = $y_b-y_c = 0.01 \hspace{0.09cm} m$ and we have,

$V_{BC} = E\times (y_b-y_c)$

$V_{BC} = 171.429\times (0.015-0.005) = 17.1429\hspace{0.09cm}V$

7 0

3 years ago

You are outdoors when you hear the constant chirp of a still cricket. You start walking toward the cricket and at some point you

tamaranim1 [39]

Answer:

C

Explanation:

intensity = Power delivered by the sound (Watt)/ Surounding Area (m²)

I = P/A

A = πr²

r = is the distance between you and the cricket.

so in other form we can get

I = P/πr²

let take I(1) as first intensitilynyou heard and I(2) as the increased intensity.

I(1) / I(2) = r(2)² / r(1)²

1/4 = r(2)²/r(1)²

1/2 = r(2) / r(1)

r(2) = ½ r(1)

or r(2) is decreaases by a factor of 2.

5 0

3 years ago

The instructions for a 13-foot ladder state that the bottom of the ladder must be set at least 5 feet from a building. How high

jeyben [28]

Answer:

The height at which the ladder safely reach on the garage is 12 meters.

Explanation:

It is given that,

Height of the ladder, H = 13 foot

Bottom of the ladder, B = 5 feet

To find,

How high can the ladder safely reach on the garage?

Solution,

The ladder and the wall follows the Pythagoras theorem. 13 foot is the height of the ladder. Distance between wall and the ladder is 5 feet. Let L is the height at which the ladder safely reach on the garage. On using Pythagoras theorem we get :

$H^2=B^2+L^2$

$L^2=H^2-B^2$

$L^2=13^2-5^2$

L = 12 m

So, the height at which the ladder safely reach on the garage is 12 meters. Hence, this is the required solution.

7 0

3 years ago

A skier uses a pair of poles to push himself down a ski slope. Which of the following correctly states when the skier has the mo

Umnica [9.8K]

A or D

Explanation:
Potential energy is when it isn’t moving. I’m only in 6th grade but, I hope this helps!

4 0

4 years ago