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4 years ago

The gravity model predicts that the optimal location of a service is

Physics

1 answer:

charle [14.2K]4 years ago

4 0

Answer:

The gravity model predicts that the optimal location of a service is directly related to the population of people in a given location and inversely related to the distance people must cover in search of it.

An optimal service is directly dependent on the size of people in that given area . The larger the people the larger the customers and vice versa.

If the place is far then less people will patronize because people won’t be willing to go through such stress to get such goods or services.

You might be interested in

According to the Doppler Effect, which statement is true about a sound as it approaches you and then moves away.

sukhopar [10]

Answer:

A) As the source approaches you, the waves are compressed so that the pitch of the noise increases.

Explanation:

The Doppler Effect occurs when there is relative motion between an observer and the source of a wave. When this happens, there is an apparent shift in the frequency of the wave, as perceived by the observer. In particular, two situations can occur:

1- If the source of the wave is moving towards the observer, the waves are compressed, so that the wavelength of the wave decreases, and therefore the frequency (and so the pitch) increases

2- If the source of the wave is moving away from the observer, the waves are stretched, so that the wavelength of the wave increases, and therefore the frequency (and so the pitch) decreases

An example of Doppler Effect occurs when we hear the sound of the siren of an ambulance.

In this problem, the situation described is situation 1 (sound waves is approaching the observer), so according to the explanation above, the correct answer is

A) As the source approaches you, the waves are compressed so that the pitch of the noise increases.

3 0

4 years ago

Read 2 more answers

Please please please I need someone who knows mathematics and someone who knows biology and someone who knows physics, very, ver

jenyasd209 [6]

Answer:

ok then here i am lol

Explanation:

4 0

3 years ago

The friends are ready to try a problem. A battery has an emf of 12.0 V and an internal resistance of 0.05 Ω. Its terminals are c

Zanzabum

Answer:

Terminal voltage = 11.5 V

Power across load = 119.7 W

Power across internal resistance = 5.4 W

Power delivered by battery = 125.2 W

Explanation:

The current in the circuit is given by

$I=\dfrac{E}{R+r}$

where E is the emf of the battery, R us the load resistance and r is the internal resistance.

$I=\dfrac{12}{1.1+0.05} = 10.43 \text{ A}$

The terminal voltage is the potential difference across the load resistor.

V = I × R = 10.43 A × 1.1 Ω = 11.5 V

The power across any resistance is given by $I^2R$

For the load resistor,

$P_L=10.43^2\times1.1 = 119.7 \text{ W}$

For the internal resistance,

$P_r=10.43^2\times0.05= 5.4\text{ W}$

The power delivered by the battery is

$P = P_L + P_r = 119.7 + 5.4 = 124.1 \text{ W}$

This could also be found by

$P = IE = 10.34\times12 = 125.2 \text{ W}$

The discrepancy in both answers is due to the approximations. The second answer is better.

4 0

4 years ago

An astronaut is traveling in a space vehicle moving at 0.490c relative to the Earth. The astronaut measures her pulse rate at 66

marta [7]

To solve the exercise it is necessary to use the reciprocal Lorenz factor of the special theory of relativity with the pulse rate.

$\Xi = Pulse_{astronaut} * \alpha$

Where,

$\Xi =$ Pulse rate measured by earth observed

$\alpha =$ Reciprocal Lorenz Factor

$\alpha = \sqrt{1-\frac{v^2}{c^2}}$

Here v is the velocity and c the light speed.

PART A) For the given values we can replace it at the previous equation,

$\Xi = Pulse_{astronaut} *\sqrt{1-\frac{v^2}{c^2}}$

$\Xi = 66beats/min * \sqrt{1-\frac{(0.49c)^2}{c^2}}$

$\Xi = 57.5beats/min$

PART B ) If the speed of vehicle is 0.94c:

$\Xi = Pulse_{astronaut} *\sqrt{1-\frac{v^2}{c^2}}$

$\Xi = 66beats/min * \sqrt{1-\frac{(0.94c)^2}{c^2}}$

$\Xi = 22.5beats/min$

8 0

3 years ago

g The electric field in a sinusoidal wave changes as E =125 N>C2cos 311.2 * 1011 rad>s2t +14.2 * 102 rad>m2x] (a) In wh

Elan Coil [88]

Answer:

a) the propagation direction is x, b) E₀ = 125 N / C² , c) B = 41.67 10⁻⁸ T ,

d) f = 4.95 10¹¹ Hz, e) λ = 4.42 10⁻³ m, f) the speed of light ,

Explanation:

The equation they give for the sine wave is

E = 125 cos (14.2 10² x - 311.2 10¹¹ t)

This expression must have the general shape of a traveling wave

E = Eo cos (kx - wt + Ф)

we can equal each term between the two equations

a) the propagation direction is x, since it is the term that accompanies the vector k

b) the amplitude is the coefficient before the cosine function

E₀ = 125 N / C²

c) to find the amplitude of the magnetic field we use that the two fields are in phase

C = E / B

B = E / c

B = 125/3 10⁸

B = 41.67 10⁻⁸ T

d) the angular velocity is

w = 311.2 10¹¹ rad / s

angular velocity and frequencies are related

w = 2π f

f = w / 2π

f = 311.2 10¹¹ / 2π

f = 4.95 10¹¹ Hz

e) the wavelength is obtained from the wave number

k = 2π /λ

k = 14.2 10² rad / m

λ = 2π / k

λ = 2π / 14.2 10²

λ = 4.42 10⁻³ m

f) the speed of an electromagnetic wave is the speed of light

g) what is a transverse wave

4 0

3 years ago