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Liono4ka [1.6K]
3 years ago
8

Read the following experiment. Describe the experiment's results; identify which of Newton's laws is illustrated and how these r

esults support this law.
1. Place a 3X5 card on top of a glass
2. Put a coin on the center of the card.
3. Flick the card horizontally with your finger
4. What happens to the coin?
Physics
1 answer:
Volgvan3 years ago
8 0
It’s 3 guaranteed because if you flick the card horizontal it’s going to bend the laws
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A student walks 3 blocks east, 4 blocks north, and 3 blocks west. What is the displacement of the student?
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4 blocks north because he is it not asking for north east 
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A sample of ascorbic acid (vitamin C) is synthesized in the laboratory. It contains 1.50 g of carbon and 2.00 g of oxygen. Anoth
Karo-lina-s [1.5K]

Answer:

8.467 gm

Explanation:

The law governing this problem is "The Law of Constant Composition "

As per this law, all compounds irrespective of their origin and source have the same composition and properties  in their purest form

It is a simple proportion and ratio related problem.

1.50 grams of carbon require 2.0 grams of oxygen

1.0 grams of carbon will require oxygen

=\frac{2}{1.5}

6.35 grams of carbon will require oxygen

\frac{2}{1.5}\times6.35= 8.4666\\= 8.467

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3 years ago
Who was the last person to step on the moon?
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Eugene Cernan was not the last, but he was the most recent.
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A circular pipe of 25-mm outside diameter is placed in an airstream at 25C and 1-atm pressure. The air moves in cross flow over
kifflom [539]

Answer:

f_D = =3.24 N/m

Explanation:

data given

properties of air\nu\ of air =19.31*10^{-6} m2/s

\rho = 1.048 kg/m3

k = 0.0288 W/m.K

WE KNOW THAT

Reynold's number is given as

Re =\frac{VD}{\nu}

      = \frac{ 15*0.025}{19.31*10^{-6}}

      = 1.941 *10^4

drag coffecient is given as

C_D = \frac{f_D}{A_f\frac{\rho v^2}{2}}

solving for f_D

f_D = C_D A_f*\frac{\rho v^2}{2}

     =C_D D*\frac{\rho v^2}{2}

Drag coffecient for smooth circular cylinder is 1.1

therefore Drag force is

f_D = 1.1*0.025 *\frac{1.048*15^2}{2}

f_D = =3.24 N/m

4 0
3 years ago
a steel ball rolls horizontally off the edge of a tabletop that is 1.0 m high. it strikes the floor at a point 2.0 m horizontall
Sauron [17]

The ball in the air is for  <u>0.319 sec.</u>

<u />

The horizontal pace of a projectile is regular (in no way converting in value), and there's a vertical acceleration because of gravity; its cost is 9.8 m/s/s, down, The vertical speed of a projectile changes via nine.8 m/s every second, The horizontal motion of a projectile is impartial to its vertical movement.

Projectile motion is a form of motion experienced with the aid of an object or particle that is projected in a gravitational field, such as from Earth's floor, and movements alongside a curved route below the action of gravity best.

Projectile motion is the movement of an object thrown (projected) into the air. After the initial force that launches the item, it most effectively reports the pressure of gravity. The object is known as a projectile, and its route is called its trajectory.

<u />

<u>Calculate:-</u>

<u />

H = ut + 1/2 gt²

Since the vertical initial velocity is 0.

H = 0 +gt²

t = \sqrt{ \frac{H}{g}

 = \sqrt{ \frac{1}{9.8}

 =<u> 0.319 sec.</u>

Learn more about projectile motion here:-brainly.com/question/10680035

#SPJ4

6 0
1 year ago
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