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ra1l [238]
2 years ago
8

Is it true or false that it is never sensible to calculate more than 100% of a number​

Physics
1 answer:
son4ous [18]2 years ago
7 0

Answer:

<h2>No,it is false that it is never sensible to calculate more than 100% of a number.</h2>
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G (where g=9.8 m/s2). If an object’s mass is m=10. kg, what is its weight?
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F_{w} =m*g \\ F_{w} =10*9.8=98N
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3 years ago
An observer standing near a window 5 m high observe that an object falling downwards is passing across the window in 0.5 s. Find
Valentin [98]

Answer:

Explanation:

An object in free fall, NOT experiencing parabolic motion, has an equation of

h(t)=\frac{1}{2} gt^2+h_0 which says:

The height of an object with respect to time in seconds is equal to the pull of gravity times time-squared plus the height from which it was dropped. Normally we use -9.8 for gravity but you said to use 10, so be it.

For us, h(t) is 5 because we are looking for the height of the window when the object is 5 m off the ground at .5 seconds;

g = 10 m/s/s, and

t = .5sec

5=\frac{1}{2}(-10)(.5)^2+h and

5 = -5(.5)² + h and

5 = -5(.25) + h and

5 = -1.25 + h so

h = 6.25

That's how high the window is above the ground.

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2 years ago
If the period of a wave is 0.05 s, then what is its frequency?
yKpoI14uk [10]
Frequency = 1/time period = 1/0.05 = 20s^-1. 
8 0
3 years ago
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How fast did Newton decide a cannon ball shot out in order to escape Earth’s gravity?
arsen [322]

Plugging in for the Earth's mass and for G, we have 11.2 km/s for the escape velocity for an object launched from the Earth's surface. This is about 25,000 miles per hour

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3 years ago
HELP ASP PLEASED AND THANKS NO LINKS PLEASED AND NO FILES
SOVA2 [1]

Answer:

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Explanation:

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