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Rashid [163]
1 year ago
13

A force F1 of magnitude 4.80 units acts on an object at the origin in a direction = 27.0° above the positive x-axis. (See the fi

gure below.) A second force F2 of magnitude 5.00 units acts on the object in the direction of the positive y-axis. Find graphically the magnitude and direction of the resultant force F1 + F2.magnitude unitsdirection ° counterclockwise from the +x-axis

Physics
2 answers:
cricket20 [7]1 year ago
7 0

Answer:hi

Explanation:

Sveta_85 [38]1 year ago
4 0

We will determine the magnitude of the final component as follows:

\begin{gathered} m=\sqrt{(5cos(27))^2+(5sin(27)+4.8)^2}\Rightarrow m=8.356527029... \\  \\ \Rightarrow m\approx8.36 \end{gathered}

So, the magnitude is approximately 8.36.

And the direction will be approximately 57.8° counter-clockwise.

This can be seeing as follows:

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Answer:

(a) Velocity at bottom is 1.85 m/s

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(c) The time required to fill the mold is 1.35 s.

Explanation:

(a)

Applying Bernoulli's Equation on both ends of the down sprue, with the assumptions that every point is at atmospheric pressure and the liquid metal at the pouring basin is at zero velocity. The equation then becomes:

V = √2gh

where,

V = velocity at bottom of down sprue

h = height of down sprue = 175 mm = 0.175 m

V = √2(9.8 m/s²)(0.175 m)

<u>V = 1.85 m/s</u>

<u></u>

(b)

The volume flow rate is given as:

Volume Flow Rate = (V)(A)

where,

V = velocity at bottom = 1.85 m/s

A = Area of bottom = 400 mm² = 0.0004 m²

Therefore,

Volume Flow Rate = (1.85 m/s)(0.0004 m²)

<u>Volume Flow Rate = 7.4 x 10⁻⁴ m³/s = 740 cm³/s</u>

(c)

The time required to fill the cavity is given as:

Volume Flow Rate = V/t

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V = Volume of mold Cavity = 0.001 m³

t = time required to fill the cavity = ?

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t = V/Volume Flow Rate

t = 0.001 m³/7.4 x 10⁻⁴ m³/s

<u>t = 1.35 s</u>

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5 0
3 years ago
Joe follows the procedure below to make a compass.
Anna [14]
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8 0
3 years ago
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What do wind and moving water have in common? Select one: They both have electrical energy They both have elastic potential ener
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3 years ago
You are walking in Paris alongside the Eiffel Tower and suddenly a croissant falls on your head and knocks you to the ground. If
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Answer:

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{\displaystyle {\overline {a}}={\frac {\Delta v}{t}}}

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You  need to multiply the formula with t and divide by a and you get

a*t=\displaystyle \Delta \mathbf {v}

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