1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
DENIUS [597]
3 years ago
14

The force F between 2 objects is inversely proportional to the square of the distance, d between them. The force is 0.36 newtons

when the distance between them is 6 metres. Work out the force (2dp) when d = 4.2 metres
I got 0.74 newtons but I was wrong... what would be the answer?
Mathematics
1 answer:
LenaWriter [7]3 years ago
5 0

Answer:

0.73 N to 2 dp.

Step-by-step explanation:

F = k/d^2   where k is a constant , F = force and d = distance.

Substituting:

0.36 = k / (6)^2

k = 36*0.36 = 12.96 s the equation is F = 12.96 / d^2.

When d = 4.2 :

F = 12.96 / 4.2^2

F = 0.73 Newtons to 2 dp.

You might be interested in
Solve for<br>30 + 9<br>43<br>a =​
Bingel [31]

Answer:

a=39

Step-by-step explanation:

4 0
3 years ago
I NEEEDDDD HELPPP ASAPPPP!!! it’s urgentttttt
Artist 52 [7]

Answer:

(x + 14)² + (y – 21/2)² = 1

Step-by-step explanation:

The equation of a circle can be written as seen below

(x – h)² + (y – k)² = r²

Where (h,k) is at the center and r = radius

We are given that the radius is 1

We are also given that the center is at (-14,21/2)

So we know that r = 1, h = -14, and k = 21/2

So to find the equation of the circle we simply substitute these values into the equation of a circle

Equation of a circle: (x – h)² + (y – k)² = r²

r = 1, h = -14, and k = 21/2

Substitute values

(x – (-14))² + (y – 21/2)² = 1²

1^2 = 1

The two negative signs before the 14 cancel out and it changes to + 14

The equation of a circle with a center at (-14,21/2) and a radius of 1 is (x + 14)² + (y – 21/2)² = 1

4 0
3 years ago
A triangle with 7,?, and form a right triangle.
Vlad1618 [11]

9514 1404 393

Answer:

  C  24

  D  25

Step-by-step explanation:

Consider the choices offered:

  5 and 7 will not form a triangle* with any of the other lengths

  7 and 12 will not form a triangle with any of the other (longer) lengths

  7 and 24 will form a triangle with the other possibilities, 25 and 29. (needs further consideration)

  7 and 25 will not form a right triangle with 29, because a right triangle cannot have 3 odd-length sides.

__

<em>Further consideration</em>

  7^2 +24^2 = 49 +576 = 625 = 25^2 . . . . checking Pythagorean theorem

The side measures 7, 24, 25 will form a right triangle.

_____

* A triangle can be formed from three segments only if the sum of the shortest two exceeds the length of the longest one.

6 0
3 years ago
Andres bought a pair of shoes for $80 and 1 shirt for $20. The sales tax is 5%. How much did Andres pay for all the items includ
Savatey [412]

Answer: $21

HOPE THIS HELPS

CAN U PLEASE GIVE ME BRAINLIEST

6 0
3 years ago
Read 2 more answers
A proper fraction is converted to a decimal equivalent by dividing the denominator into the numerator. True
kondaur [170]

False, it's the other way around: you divide the numerator by the denominator.

For example, to evaluate \frac{8}{15} you divide 8 by 15:

\dfrac{8}{15} = 8\div 15 = 0.5\overline{3}

7 0
3 years ago
Other questions:
  • Determine as a linear relation in x, y, z the plane given by the vector function F(u, v) = a + u b + v c when a = 2 i − 2 j + k,
    6·1 answer
  • Solve for y 5x+y=-10
    10·2 answers
  • Number 65 is what I need please
    6·1 answer
  • Complete the equation of the graphed linear function. Write the slope in decimal form.
    6·2 answers
  • What is the equation for the line that is perpendicular to y=3/4x+1, through (0,5)?
    13·2 answers
  • Janie receives an allowance of \$3$3dollar sign, 3 per week. In addition, she can earn \$2$2dollar sign, 2 for each chore she do
    9·1 answer
  • 3/4 - 3/10 = ? Simply the answer.
    11·1 answer
  • What is the solution to the equation x−5/6=−1?
    10·2 answers
  • How to find the measure of a triangle?
    9·2 answers
  • Given that m2(n-l) m=-2 and n=3/4​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!