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luda_lava [24]
3 years ago
5

How long does it take the projectile to reach its highest point in its trajectory?​

Physics
1 answer:
NeTakaya3 years ago
3 0

Answer:

It takes about 88 seconds for the cannonball to reach its maximum height (ignoring air resistance).

Explanation:

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tatiyna

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List three devices that use electric current from batteries and three that use regular house current.
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What will happen to people involved in handling Gamma rays if they are not providedwith lead coated apron and equipment without
Alexandra [31]

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When gamma rays pass through the human body, they ionize the tissue.  gamma ray ionization can affect healthy cells. When high levels of gamma rays bombard a body, a resulting dangerous ionization of tissue can cause skin cancer.

Explanation:

6 0
2 years ago
A scientist directs monochromatic light toward a single slit in an opaque barrier. The light has a wavelength of 580 nm and the
vredina [299]

Answer:

a) 9.72 mm

b) 4.86 mm

Explanation:

wave length of light  λ is  580 nm = 580 \times 10⁻⁹ m

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= \frac{580\times10^{-9}\times1.8}{.000315}

=4.86 mm.

a) Width of central maxima = 2 times width of one fringe

= 2 times 4.86

=9.72 mm

b) width of each fringe except central fringe  is same , no matter what the order is.Only brightness changes .

So width of either of the two first order bright fringe will be same and it will be  

= 4.86 mm.

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3 years ago
Which one doesn't belong in the group? oxygen, sulfur, selenium,
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It’s gonna be Oxygen ....
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