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strojnjashka [21]
2 years ago
12

Select the areas that would receive snowfall because of the lake effect.

Physics
1 answer:
Studentka2010 [4]2 years ago
8 0

Answer:

- Grand Marais

- Two Harbors

- Duluth

Explanation:

The places that would would get snowfall because of the lake effect are Grand Marais, Two Harbors, and Duluth. The reason for this is that these three places are located right on the shores of the Lake Superior. This lake is one of the biggest lakes in the world. It has enormous amount of water in it, having big impact on the regional climate because of that. The water from this lake creates a lot of humidity in the air, and there's a lot of evaporation as well, both causing the formation of clouds, and when it is cold enough, instead of precipitation, the region gets large amounts of snowfall.

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The human ear canal is, on average, 2.5cm long and aids in hearing by acting like a resonant cavity that is closed on one end an
Troyanec [42]

Answer:

3400 Hz

Explanation:

We know that

1 cm = 0.01 m

L = Length of the human ear canal = 2.5 cm = 0.025 m

V = Speed of sound = 340 ms⁻¹

f = First resonant frequency

The human ear canal behaves as a closed pipe and for a closed pipe, nth resonant frequency is given as

f = \frac{(2n - 1)V}{4L}

for first resonant frequency, we have n = 1

Inserting the values

f = \frac{(2(1) - 1) 340}{4(0.025)}

f = \frac{340}{4(0.025)}

f = 3400 Hz

4 0
2 years ago
All scientists try to base their conclusions on _____.
seraphim [82]
Either theory or evidence
8 0
2 years ago
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One of the Lady Spartans was falling to the ground after
dem82 [27]

Answer:

Explanation:

Given that,

A lady falling has a final velocity of 4m/s

v = 4m/s

Mass of the lady is 60kg.

m = 60kg

Using conservation of energy, the potential energy of the body from the point where the lady is dropping is converted to the final kinetic energy of the lady.

Therefore,

P.E = K.E(final) = ½mv²

P.E = ½ × 60 × 4²

P.E = 480 J.

0 0
2 years ago
The rectangular boat shown below has base dimensions 10.0 cm × 8.0 cm. Each cube has a mass of 40 g, and the liquid in the tank
Paladinen [302]

When boat is sunk into the liquid the net buoyancy on the boat is counterbalanced by weight of the boat

So here weight of the boat = Buoyancy force

let say boat is sunk by distance "h"

now we can say

F_b = \rho * V * g

F_b = 1000*0.10 * 0.08 * h * 9.8

now by above force balance equation we can write

m*g = F_b

0.040 * 9.8 = 1000 * 0.10 * 0.08 * h * 9.8

0.040 = 8h

h = 5 * 10^{-3} m

so boat will sunk by total 5 mm distance

8 0
2 years ago
Consider the static equilibrium diagram here. What is the angle F1 must make with the horizontal?
Nataly [62]

ANSWER


\theta=35\degree


EXPLANATION


Since the body is in equilibrium, total upward forces must equal total downward force.


Also the net horizontal forces acting on the body must be zero.



We need to resolve F_1 into vertical and horizontal components.



The horizontal component is


x=F_1\cos\theta.


The vertical component is


y=F_1\sin\theta.



Equating the up force to the downward forces gives,


F_1\sin\theta + 20N=60N.


This implies that,



F_1\sin\theta =60N-20N.




F_1\sin\theta=40N...eqn1




Also the horizontal forces must be equal.


F_1\cos\theta=57N...eqn2.



Dividing equation (1) by equation (2) gives,


\frac{F_1\sin\theta}{F_1\cos\theta}=\frac{40}{57}.


\Rightarrow \tan\theta=0.70175





\Rightarrow \theta=tan^{-1}(0.70175)


\Rightarrow \theta=35.0594.




Therefore the given angle that F_1 must make with the horizontal is approximately 35° to the nearest degree.

4 0
2 years ago
Read 2 more answers
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