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Lapatulllka [165]
3 years ago
13

What is the velocity if your going 105 miles every 10 minutes

Physics
2 answers:
Afina-wow [57]3 years ago
8 0
The speed is 10.5 miles per minute, or 630 miles per hour.
We don't know the velocity, because you didn't tell us anything about the direction I'm going.
Goshia [24]3 years ago
6 0
Velocity= distance/time

Distance= 105
Time=10
Velocity= 105/10
Velocity= 10.5m/s
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The woman in the first photo lifts a plant 2 m
Serjik [45]

Answer:

65x2=130

that's what she does

8 0
3 years ago
An aquarium open at the top has 30-cm-deep water in it. You shine a laser pointer into the top opening so it is incident on the
Setler [38]

Answer:

You must add 8cm of water to the tank

Explanation:

In order to find how much the height is we will use the Snell Refraction law

.

This law relates the index of refraction of the water (n2), the index of refraction of the air (n1), the incidence angle relative to the vertical (theta1) and the refraction angle relative to the vertical (theta2) by using the next equation:

(n1)*(sin(theta1))=(n2)*(sin(theta2))

Then we will find the refraction angle relative to the vertical this way:

(n1/n2)*(sin(theta1))=sin(theta2)

(1/1.33)*(sin(45))=sin(theta2)

Then, theta2=32.12°

Now that we have this information we can imagine a triangle with a 30cm height and a 32.12° angle. This way we can find how much X is, this X will be the distance between the vertical line and the spot the beam hits the bottom, so we can use some trigonometry to find it, this way:

tan(32.12)=(X/30cm)

X=(tan(32.12))*(30cm)

Then, X=18.8cm, we can approximate it to 19cm

Once we have X we will add 5cm to it which is how much the beam needs to be moved, then the new X will be 24cm

Now, with the new horizontal distance we will find the new vertical distance, let´s call it Y, this way we will know how much water we must add to move the beam, then we will have a triangle with a vertical distance called Y, the same 32.12° angle will be used as we are still working with the air-water interface and a 19cm horizontal distance, then:

tan(32.12)=(24cm/Y)

Y=(24cm/tan(32.12))

Then, Y=38cm

In this case, you must add 8cm of water to the tank to move the beam on the bottom 5cm

5 0
3 years ago
How is a theory different from a hypothesis? How is a theory different from a hypothesis? 3 following 10 answers 10 Report Abuse
Fed [463]
A theory is an idea that is widely agreed on by scientists and can be changed when new info comes to light while a hypothesis is an educated guess sometimes based on prior knowledge.
4 0
3 years ago
CAN SOMEONE PLS HELP ME!!!
scZoUnD [109]

Answer:

c

Explanation:

the question answered itself.

4 0
2 years ago
Read 2 more answers
54 km/h is equal to
pogonyaev

\Huge{\underline{\underline{\mathfrak{\green{AnsWeR:}}}}}

1 km/h = 5/18 m/s

54 km/h = 54×5/18 m/s

<h2>= 15 m/s</h2>
7 0
3 years ago
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