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MakcuM [25]
3 years ago
14

An experiment is designed to determine the launch angle that will give a projectile the greatest range (make it go the longest d

istance). The "launcher" is a slingshot type of apparatus that is spring-loaded and released by a trigger. For each trial, the same painted rock is retrieved and launched. Measurements are taken linearly from the launch site to the landing site. The trials were done on a windless day.
Which of the following would be a good hypothesis for this experiment?

If the angle of the launcher is increased, the rock will go further.

Changing the angle of the launcher will vary the distance that the rock can be projected.
Mathematics
2 answers:
RideAnS [48]3 years ago
5 0
Test each

if angle is increased, rock will go further
if the angle starts at 0, then increases to 90 degrees (straight up) the rock will go up then bounce off of the launcher going either front or back, but vastly shorter than if it were pointed straight ahead


2nd one
changing angle change the distance
we see that is true
irina [24]3 years ago
3 0

If the angle of the launcher is increased, the rock will go further........

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Please help.
Charra [1.4K]

Answer:

Since we have a 30° - 60° - 90° triangle, we can calculate any side by knowing at least one out of three:

Since the length of the hypotenuse is twice as long as the shorter leg, we have:

The length of the short leg is: 25/2 = 12.5

Since the length of the longer leg is equal to the length of the shorter leg

multiply by square root of 3 we have:

The length of the longer leg is: 12.5 × √3 ≈21.65

=> The perimeter of the triangle is: 25 + 12.5 + 21.65 = 59.15

6 0
3 years ago
Read 2 more answers
What number does x stand for in this equation?<br> -7X + 6= 27
Levart [38]

Answer:

x = -3

Step-by-step explanation:

-7X + 6= 27

Subtract 6 from each side

-7x +6-6 = 27 -6

-7x = 21

divide each side by -7

-7x/-7 = 21/-7

x = -3

5 0
3 years ago
The center of a circle is at (2, -5) and it's radius is 12. What is the equation of the circle?
Svetach [21]
The equation for a circle is (x-h)^2 +(y-k)^2=r^2
You just have to plug in your coordinates h is the x and k is the y.
The r is radius squared.
so, (x-2)^2+(y-(-5)^2=144
You have to be careful of those tricky negative values. When you distribute the y-(-5) it turns into y+5. 
So your answer is D.
8 0
3 years ago
Read 2 more answers
What is the measure of angle DBA?
const2013 [10]

Answer:

DBA =110 degree

Step-by-step explanation:

angle DBA is central angle

central angle = arc angle = 110 degree

8 0
2 years ago
Read 2 more answers
-HELPPP!
suter [353]

Answer:

p(x) = A(x - 4i)(x + 4i)(x - 3)(x + 3), with A = 1.

it matches

8 0
2 years ago
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