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zmey [24]
3 years ago
10

A kid has 650 Joules of potential energy when they are the top of their swing. If the height is 1.3 meters, what is the mass of

the kid?
Mathematics
1 answer:
Greeley [361]3 years ago
6 0

Answer:

51kg

Step-by-step explanation:

GPE=mass×gravitational field strength×height

so...

mass=GPE/gravitational field strength×height

gravition field strength on earth=9.81

650/9.81×1.3=50.968...

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Two and two fifths divided by one and a half
worty [1.4K]

Answer:

8/5 or 1 3/5

Step-by-step explanation:

2 2/5 = 12/5

1 1/2 = 3/2

Now that we have fractions that are easier to divide, one must understand that the opposite of dividing is multiplying. So if you multiply 12/5 by the reciprocal* of 3/2, which would be 2/3, you would get your answer so...

12     3         12    2        24     8             3

—  ÷ —   =   — × —    =  —  = —   <em>or</em>  1  —

5       2         5     3        15      5             5

*the reciprocal is the opposite of the fraction you have. So the denominator would become the numerator, and vise versa.

6 0
3 years ago
Neil is analyzing two linear functions, f(x) and g(x). Will they intersect?
LUCKY_DIMON [66]
No, the two lines do NOT intersect because they are parallel lines (see the attached image). Both lines have a slope of 2, or 2/1. Recall that slope = rise/run. So this means that we go up 2 and over to the right 1. Lines with the same slope but different y intercepts means that they are parallel. Parallel lines never cross.

In short, the final answer is choice D.

5 0
3 years ago
A farmer builds a fence to enclose a rectangular pasture.He uses 160 feet of fence. Find the total area if the pasture is 50 fee
Sergeeva-Olga [200]
2L +2W=160
100+ 2W=160
subtract 100 from each side
2W=60
divide by two each side
W=30 
use the formula L×W=Area or 50×30 which equals 150 the are of the pasture is 150 feet²
3 0
3 years ago
Find the diagonal of a rectangular frame which measures 77 in. by 36 in.
Cerrena [4.2K]

Answer:

85

Step-by-step explanation:

think about the diagonal of the frame, breaking up a rectangle into 2 right angled triangles. we are already given the legs of the triangle (77, and 36) and now we have to solve fro the hypotenuse (or the diagonal). so use pythagorean theorem :

77^2 + 36^2 = c^2

7225 = c^2

c = 85

5 0
3 years ago
Convert the angle θ=180​∘ to radians.
Kazeer [188]

Answer:

pi

Step-by-step explanation:

To convert from degrees to radians, we multiply by pi/180

180 * pi/180 = pi

3 0
3 years ago
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