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Gnoma [55]
3 years ago
15

4. How long would it take for a water balloon to fall 39 m if we dropped it starting from rest down an

Physics
1 answer:
Paraphin [41]3 years ago
8 0

Answer:

Around 2.8212 sec

Explanation:

Given the eqn x=1/2at^2+vot

your vo=0

39=1/2(-9.8)t^2

=7.95=t^2

=2.82sec

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A vector has a length of 10 and rises
wariber [46]

Answer:

Correct answer:  y = 6.43 units

Explanation:

Given:  the length of the vector  l = 10 units , angle that closes a vector with a positive direction to the x axis α = 40°

The vector forms a rectangular triangle with coordinate axes

sin α = y / l  ⇒ y = l · sin α = 10 sin 40° = 10 · 0.643 = 6.43 units

y = 6.43 units

God is with you!!!

6 0
3 years ago
As Merrill watches his finger with both eyes open as he brings his finger closer to his nose, he feels his eye muscles working.
charle [14.2K]

Answer:

Answered

Explanation:

As Merrill watches his finger with both eyes open as he brings his finger closer to his nose, he feels his eye muscles working. This shows that her eyes  Muscles have both accommodation and convergence.

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3 years ago
According to the big-bang theory how the universe might end?
Troyanec [42]

Answer:

<em>If the Universe holds enough matter, including dark matter, the combined gravitational attraction of everything will gradually halt this expansion and precipitate the ultimate collapse. Over time, galaxies, then individual stars, will smash into each other more frequently, killing off any life on nearby planets.</em>

3 0
2 years ago
Parallel light rays with a wavelength of 563 nm fall on a single slit. On a screen 3.30 m away, the distance between the first d
MrMuchimi

Answer:

The width of the slit is 0.4 mm (0.00040 m).

Explanation:

From the Young's interference expression, we have;

(λ ÷ d) = (Δy ÷ D)

where λ is the wavelength of the light, D is the distance of the slit to the screen, d is the width of slit and Δy is the fringe separation.

Thus,

d = (Dλ) ÷ Δy

D = 3.30 m, Δy = 4.7 mm (0.0047 m) and λ = 563 nm (563 ×10^{-9} m)

d = (3.30 × 563 ×10^{-9} ) ÷ (0.0047)

  = 1.8579 × 10^{-6} ÷ 0.0047

  = 0.0003951 m

d = 0.00040 m

The width of the slit is 0.4 mm (0.00040 m).

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3 years ago
PLZ HELP ME FAST A relationship between two variables is called:
Irina18 [472]

Answer:

B- Correlation

Explanation:

6 0
2 years ago
Read 2 more answers
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