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Sever21 [200]
3 years ago
14

You received a gift card for your birthday to your favorite electronics store. You are trying to decide if you should buy the re

ally cool camera or save the gift card for a later purchase. In a brief paragraph, create a cost-benefit analysis using each of the steps to come to a conclusion.
Physics
1 answer:
Ne4ueva [31]3 years ago
7 0
You should buy a cool camera you never no what a could ,well say you can write a poem of this
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an object is moving with a velocity 10 m/s but its slowing down.After 2m it has stoppes.What was the acceleration?​
s344n2d4d5 [400]

Answer:

Explanation

distance= speedx time

time= 2m/(10m/s) =0.2s

a = v-u/t

a = 0-(10m/s)/0.2s

a= -50m/s2

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4 years ago
Why does your mouth water when you smell food
Aloiza [94]
Because we can tast the the food already and we get hungry.
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3 years ago
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tamaranim1 [39]

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4 0
3 years ago
Calculate the ratio of the drag force on a passenger jet flying with a speed of 1200 km/h at an altitude of 10 km to the drag fo
Sonbull [250]

Answer:

2.267

Explanation:

Drag force is given by

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

C = Drag coefficient is constant

A = Area is constant

v_1 = Velocity of the passenger jet = 1200 km/h = \dfrac{1200}{3.6}\ \text{m/s}

v_2 = Velocity of the prop plane = \dfrac{1}{4}v_1

\rho_1 = Density of the air where the jet was flying = 0.38\ \text{kg/m}^3

\rho_2 = Density of the air where the prop plane was flying = 0.67\ \text{kg/m}^3

F\propto \rho v^2

\dfrac{F_1}{F_2}=\dfrac{\rho_1 v_1^2}{\rho_2 v_2^2}\\\Rightarrow \dfrac{F_1}{F_2}=\dfrac{0.38 v_1^2}{0.67 (\dfrac{1}{4}v_1^2)}\\\Rightarrow \dfrac{F_1}{F_2}=2.267

The ratio of the drag forces is 2.267.

5 0
3 years ago
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