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jarptica [38.1K]
3 years ago
10

Two vectors, X and Y, form a right angle. Vector X is 48 inches long and vector Y is 14 inches long. the length of the resultant

vector is____ inches.

Physics
1 answer:
Scorpion4ik [409]3 years ago
4 0
Solution is provided below hope this helps

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A baseball is released at rest from the top of the Washington Monument. It hits the ground after falling for 6 s. What was the h
alukav5142 [94]

Answer:

Total height (s) = 176.4 m

Explanation:

Given:

Initial velocity (u) = 0 m/s

Time taken (t) = 6 sec

Acceleration due to gravity = 9.8 m/s²

Find:

Total height (s)

Computation:

s = ut + [1/2]gt²

s = (0)(6) + [1/2][9.8][6²]

s = 176.4 m

Total height (s) = 176.4 m

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A 0.54 kg bullfrog is sitting at rest on a level log. How large is the normal force of the log on the bullfrog?
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Answer:

<h2>5.3N</h2>

Explanation:

Step one:

given data

mass of bullfrog= 0.54kg

Step two:

Required

The force F in Newton

From newton first law

F=mg

The acceleration due to gravity acting on the frog is 9.81m/s^2

hence

F=0.54*9.81

F=5.3N

The normal force is 5.3N

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Describe the forces on a rope that supports a tire swing when a child sits on the tire
noname [10]
Potential energy perhaps
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How much force is needed to lift a 25-kg mass at a constant verlocity?
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-- In order to achieve constant verlocity, the net force on the mass must be zero.  So if there ARE any forces acting on it, they must be balanced.

-- There is already a force on the mass that can't be eliminated . . . the force of gravity.

-- That force due to gravity is (mass x gravity) = (25 kg)(9.8 m/s²) = <em><u>245N</u></em> in the <u><em>downward</em></u> direction.

-- In order to 'balance' the forces and make them add up to zero, we have to provide another force of <em>245N</em>, all in the <em>upward</em> direction.

-- Then the forces on the object will be balanced, the NET force on it will be zero, and whichever way you start it moving, it will continue to move at a cornstant verlocity.

5 0
3 years ago
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Each square of the periodic table shows information about one element. The square usually shows the element's _______.
enot [183]

Answer:C. atomic number

Explanation:

4 0
2 years ago
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