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Zolol [24]
3 years ago
14

Which is a statement that summarizes a pattern found in nature A. A hypothesis B. A scientific law C. A fact D.a scientific theo

ry
Physics
2 answers:
krok68 [10]3 years ago
6 0

The answer is B. Scientific Law

dalvyx [7]3 years ago
4 0
The answer is

B: A scientific law
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Greeley [361]
You would use distance an time formula to mathmaticly solve

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3 years ago
If a ball is thrown straight up into the air with an initial velocity of 40 ft/s, it height in feet after t second is given by y
Tasya [4]
We should first calculate the highest point that ball reaches. 
y' = 40 - 32t = 0
t = 40/32 = 1,25s
y = 25 feet.

To calculate average velocity we use simple formula:
Vav=s/t   where s is traveled distance by the time t.



for t=2  we calculate y
y = 16
(i)  for t = 2,5     y = 0
Vav = 16/0.5 = 32 feet/s
(ii) for t = 2.1     y = 13.44
Vav = 2.56/0.1 = 25.6 feet/s
(iii) for t = 2.01  y = 15.7584
Vav = 0.2416/0.01= 24.16 feet/s

it seems like the answer would be 24 feet/s. There is a way to calculate that.
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3 years ago
Mary and Chuck each pull at opposite ends of a rope. Chuck is stronger. Who will move backwards?
Sveta_85 [38]
Chuck will move backwards.
6 0
4 years ago
A plate falls vertically to the floor and breaks up into three pieces, which slide along the floor. immediately after the impact
pshichka [43]
Refer to the diagram shown below.

Define the (x,y) plane as the horizontal plane of the floor.
There was no momentum in the (x,y) plane before the plate hit the floor.

Let the velocity components in the (x) and (y) directions of the 100 g mass be Vx and Vy respectively, and that the resultant velocity, V, makes an angle θ below the negative x-axis as shown.

Because momentum is conserved, therefore
100*Vx + 320*2 = 0
100Vx = -640
Vx = -6.4 m/s

100Vy + 355*1.5 = 0
100Vy = -532.5
Vy = -5.325 m/s

V = √[(-6.4)² + (-5.325)²] = 8.33 m/s
θ = tan⁻¹ (-5.325/-6.4) = 39.8°

Answer:
The direction is 39.8° below the negative x-axis
The speed is 8.33 m/s


8 0
3 years ago
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Which of the following is an example of a example of a decomposition recreation
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i am 2.5 with the thhe 2020 is 3 and 5 is 7

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