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vivado [14]
3 years ago
13

SOMEONE HELP Jeffery used a stream table as a model to show how water erodes soil. As he sprayed water on the stream table, some

of the soil was carried to the end of the table.
Jeffery used his stream table to model an interaction between which two spheres?
A. geosphere and biosphere
B. biosphere and atmosphere
C. hydrosphere and atmosphere
D. geosphere and hydrosphere

Physics
1 answer:
Svetach [21]3 years ago
7 0

Answer:

Hydrosphere and atmosphere

Explanation:

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Which instrument would make rice vibrate easier, a tuba or a flute? Explain why. Hint: think about the difference between high a
algol13

Answer:

I assume the higher notes would make the rice vibrate more easily, so a flute.

8 0
3 years ago
An airplane is traveling at a fixed altitude with an outside wind factor. The airplane is headed N 40° W at a speed of 600 miles
bija089 [108]

Answer:\vec{v_R}=\hat{i}[-329.11]+\hat{j}[516.18]

Explanation:

Given

Plane is initially flying with velocity of magnitude v=600\ mph

at angle of 40^{\circ} with North towards west

Velocity of plane airplane can be written as

v_a=600(-\sin 40\hat{i}+\cos 40\hat{j})

Now wind is encountered with speed of v=80\ mph at angle of N45^{\circ}E

v_w=80(\cos 45\hat{i}+\sin 45\hat{j})

resultant velocity

\vec{v_R}=\vec{v_a} +\vec{v_w}

\vec{v_R}=600(-\sin 40\hat{i}+\cos 40\hat{j})+ 80(\cos 45\hat{i}+\sin 45\hat{j})

\vec{v_R}=\hat{i}[-385.67+56.56]+\hat{j}[459.62+56.56]

\vec{v_R}=\hat{i}[-329.11]+\hat{j}[516.18]

for direction \tan \theta =\frac{516.18}{329.11}

\tan \theta =1.568

\theta =57.47^{\circ} west of North

3 0
4 years ago
You want to reduce your energy bills.
aleksandr82 [10.1K]

Answer:

A. 100 Watts

B. 12 Watts

C. the first bulb

Explanation:

A. The formula for power is Work done/time

6000J/60seconds = 100J/s or 100W

B. Another formula for power is Current * Voltage

0.05*240 = 12W

6 0
3 years ago
What is the acceleration of a car that travels in a straight line?
Sphinxa [80]
Acceleration occurs when there is a change in speed or direction. If it travels in a straight line, there is no speed or change in direction as it is constant througout, hence 0 acceleration.

hope this helps!! ✨
6 0
3 years ago
Read 2 more answers
5 points
lesantik [10]

Answer:

True

Explanation:

Because everything usually has chemicals

Plz say it's false if i gave out the wrong answer

7 0
3 years ago
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