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Eva8 [605]
3 years ago
11

The initial vertical component of the velocity is 15.3 m/s and the angle of the water is 55 degrees. What is the magnitude of th

e vector?
The answer is 18.7 m/s but how did they get this???
Physics
1 answer:
Alex787 [66]3 years ago
3 0

The vertical component of velocity is given by

V = Vy x Sin (Theta)

15.3 m/s = Vy x Sin (55 degrees)

Vy = 15.3 m/s/Sin (55 degrees)

= 15.3 m/s/0.819

= 18.681 m/s

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skad [1K]

Answer:

the terminal velocity of 14 nested coffee filters is 3.2 m/s

Explanation:

Given the data in the question;

we know that;

The terminal velocity is proportional to the square root of weight.

v ∝ √W

v = k√W

the proportionality constant depends upon the surface area and the density of the medium (like air). The coffee filters can be stacked such that the resulting area is roughly unchanged. So, the constant of proportionality k is also unchanged

v/√W = constant

v₂/√W₂ = v₁/√W₁

v₂ = v₁√(W₂ / W₁ )

given that;

v₁ = 0.856 m/s,

W₂ = 14W₁; meaning 14 coffee filters have 14 times the weight of a single coffee filter

so we substitute

v₂ = 0.856 √(14W₁  / W₁ )

v₂  = 0.856 √( 14( W₁/W₁)

v₂  = 0.856 √( 14(1)

v₂  = 0.856 √( 14 )

v₂  = 0.856 × 3.741657

v₂  = 3.2 m/s

Therefore, the terminal velocity of 14 nested coffee filters is 3.2 m/s

6 0
3 years ago
Seasons are more noticeable in places that are____from to the equator
Liula [17]
1. farther
2. true

the equator is a weirdo
4 0
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Why did one liter of have a greater mass than the other liter prepared by a different method
VikaD [51]
Maybe the water wasnt stable enough and probably couldnt read the water level correctly

4 0
3 years ago
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Carlos gives a grocery cart a 60-N push. The cart has a mass of 40 kg. What is the cart's acceleration?
andre [41]
<h3>Answer:</h3>

1.5 m/s²

<h3>Explanation:</h3>

We are given;

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Mass of the Cart as 40 kg

We are required to calculate the acceleration of the cart.

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Rearranging the formula we can calculate acceleration, a

a = F ÷ m

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Therefore, the acceleration of the cart is 1.5 m/s²

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