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Sholpan [36]
3 years ago
8

1. Fill in the blanks FX FY F Angle (degrees) from the x axis 10 30 10 10 10 60 20 35 15 60 2. An airplane flew for one hour and

landed 120 miles north and 90 miles east from its origin. What was the distance traveled, speed and angle of direction from its origin? 3. A flagpole’s shadow is 50 meters long. The sun shines at an angle of 600 from the ground. How high is the flagpole? 4. A force has a magnitude of 50 newtons and direction of 400 from the x axis. Resolve the Fx and Fy components of the force. Also prove that these two forces can be resolved back to the original force.

Physics
1 answer:
worty [1.4K]3 years ago
7 0

Answer:

1) the answer to this question can't be determined from the given data.

2) distance traveled = 150 miles

Speed = 150 miles/hr

Angle of direction = 36.87°

3) the height of the flagpole is 86.602m

4) Fx = 38.30N, Fy = 32.139N

Explanation:

Detailed explanation and calculation is shown in the image

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A bullet starting from rest accelerates uniformly at a rate of 1,250 meters per square second. What is the bullet's speed after
Tatiana [17]

Answer:

125,000

Explanation:

8 0
3 years ago
5. Susan exerted 400 newtons of force while pushing on a huge boulder. The boulder moved 0 meters. Calculate work.
Stells [14]

Answer:

0 J

Explanation:

Work is the product of force and distance in the direction of force.

The formula is ; Work = Force * Distance

Given that :

Force = 400 N

Distance = 0 meters

Work = 400 * 0 = 0 J

No work was done because the boulder did not move.

4 0
3 years ago
How many hydrogens are in 3 molecules of H20?
Mazyrski [523]

Answer:

1 atom of oxygen

2 atoms of hydrogen in each molecule

Each water molecule contains 3 atoms making the H2O formula

3 0
3 years ago
The intensity of an earthquake wave passing through the earth is measured to be 2.5×106 j/(m2⋅s) at a distance of 43 km from the
vampirchik [111]

r₁ = distance of the point from the source = 43 km = 43000 m

I₁ = intensity of earthquake wave at distance "r₁" = 2.5 x 10⁶ W/m²

r₂ = distance of the point from the source = 1.5 km = 1500 m

I₂ = intensity of earthquake wave at distance "r₂" = ?

we know that , for a constant power , the intensity of wave is inversely proportional to the distance from the source .

I α 1/r²             where I = intensity of wave , r = distance from source

hence we can write

I₁/I₂ = r₂²/r₁²

inserting the values

(2.5 x 10⁶) /I₂ = (1500/43000)²

I₂ = 2.1 x 10⁹ W/m²

4 0
3 years ago
Would tap water likely freeze and boil at those exact temperatures? (temperature freezes at 0 degree celius and boils at 100 deg
Kitty [74]

No

Explanation:

Tap water will not boil and freeze at those exact temperature which are the boiling and freezing points.

O°C and 100°C are the boiling points of pure water.

Pure water is a pure substance with a definite composition made up of 2 atoms of hydrogen and 1 atom of oxygen.

Pure water boils at  100°C  and freezes at O°C ,

  • Tap water is not pure water.
  • It has some impurities in it which causes causes the elevation of the boiling point of liquids and widening of the boiling range.
  • Tap water is treated water that contains some other dissolved chemicals.

learn more:

Molecular formula brainly.com/question/4574324

#learnwithBrainly

6 0
3 years ago
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