# Which is the standard equation for a circle centered at the origin with radius?

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## Which is the standard equation for a circle centered at the origin with radius?

2 Answers By Expert Tutors The standard form for the equation of a circle with radius r , center at (h, k) is given as (x – h)2 + (y – k)2 = r2. Since the origin is given as the center, h and k are both equal to zero.

## What is the equation of a circle centered at the origin with radius 15?

Step-by-step explanation: The general form is x^2 + y^2 = r^2 where r = the radius of the circle. The radius is 15 so the equation is x^2 + y^2 = 15^2.

## What is the equation of circle with Centre of origin and radius is 6 cm?

So, if the center is (0,0) and the radius is 6, an equation of the circle is: (x-0)2 + (y-0)2 = 62.

## What is the equation of a circle with center at 0 0 and a radius of 5 units?

The equation of the circle is x^2 + y^2 = 25 Now we will determine the radius. Since the point (3,4) is on the circle, then the distance between the point and the center is the radius. Then, the radius of the circle is 5 units.

## What is the general equation of a circle with center at the origin and radius r?

x2 + y2 = r2 , and this is the equation of a circle of radius r whose centre is the origin O(0, 0). The equation of a circle of radius r and centre the origin is x2 + y2 = r2 .

## How do you find the points of a circle with the center and radius?

The equation of a circle with center (h,k) and radius r units is (x−h)2+(y−k)2=r2 .

## What is the formula of rate?

However, it’s easier to use a handy formula: rate equals distance divided by time: r = d/t.

## What is the formula for calculating power?

Power is a measure of the amount of work that can be done in a given amount of time. Power equals work (J) divided by time (s). The SI unit for power is the watt (W), which equals 1 joule of work per second (J/s).

## What is the formula of work done in electricity?

Work = Force X Distance, or the amount of heat transferred (Measured in Joules or calories).

## When work is done there is transfer of energy?

Work is the transfer of mechanical energy from one object to another. Since work is a movement of energy, it is measured in the same units as energy: joules (J).

## Does force transfer energy?

Bigger pushes and pulls cause bigger changes in an object’s motion or shape. When objects collide, contact forces transfer energy so as to change the objects’ motions. When two objects interact, each one exerts a force on the other, and these forces can transfer energy between them.