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3 years ago

PLEASE HELP WITH EXPLANATION! I WILL GIVE YOU BRAINLIEST!

Physics

1 answer:

DiKsa [7]3 years ago

6 0

Answer:

divide the distance by the time and get average velocity in units of s. the detection to the left

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Radio waves travel at 3.00 · 108 m/s. Calculate the wavelength of a radio wave of frequency 600 kHz. (6.00 · 105 Hz).

frutty [35]

Hmm, I got that the wavelength is 500 meters.

4 0

3 years ago

Read 2 more answers

Two long, straight wires are parallel and 16 cm apart. One carries a current of 2.9 A, the other a current of 5.7 A. (a) If the

Mnenie [13.5K]

Explanation:

Given that,

Distance between two long wires, d = 16 cm = 0.16 m

Current in one wire, $I_1=2.9\ A$

Current in wire 2, $I_2=5.7\ A$

The magnetic force per unit length of one wire on the other is given by the following expression as :

$\dfrac{F}{l}=\dfrac{\mu_o I_1I_2}{2\pi d}$

$\dfrac{F}{l}=\dfrac{4\pi \times 10^{-7}\times 2.9\times 5.7}{2\pi \times 0.16}$

$\dfrac{F}{l}=2.06\times 10^{-5}\ N/m$

The current is flowing in opposite direction, the magnetic force acting on it is repulsive. Hence, this is the required solution.

5 0

3 years ago

Calculate the ratio of the drag force on a passenger jet flying with a speed of 950 km/h at an altitude of 10 km to the drag for

gulaghasi [49]

Answer:

14.18

Explanation:

given,

Speed of passenger jet,v₁ = 950 Km/h

Altitude of flight, h₁ = 10 km

Prop-driven speed,v₂ = 950/5 = 190 Km/h

altitude,h₂ = 5 Km

density of air at 10 Km = 0.38 Kg/m³

density of air at 5 Km = 0.67 Kg/m³

Drag force formula

$F = \dfrac{1}{2}C\rho Av^2$

now, ratio of drag Force

$\dfrac{F_{jet}}{F_{prop}}=\dfrac{\dfrac{1}{2}C\rho_{10} Av_{1}^2}{\dfrac{1}{2}C\rho_{5} Av_2^2}$

$\dfrac{F_{jet}}{F_{prop}}=\dfrac{\rho_{10} v_{1}^2}{\rho_{5}v_2^2}$

$\dfrac{F_{jet}}{F_{prop}}=\dfrac{0.38\times 950^2}{0.67\times 190^2}$

$\dfrac{F_{jet}}{F_{prop}}=14.18$

Hence, the ration of the drag force is equal to 14.18.

8 0

3 years ago

Please help me with this!!

Alja [10]

Answer:

Explanation:

Action and Reaction forces are equal in the opposite direction.

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3 years ago

Ariana is heating a beaker of water. She notices that the water at the bottom

RSB [31]

B will be the answer ( Radiation)

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3 years ago