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Vaselesa [24]
2 years ago
7

determine the angle and the magnitude of force f so that the resultant force acting on the post is directed vertically upward an

d has a magnitude of 750 n

Physics
2 answers:
xenn [34]2 years ago
5 0

Answer / Explanation:

To solve this question,

Let us recall the Sine Rule and assuming we have an angle of θ.

Then it states thus:

sin θ / 750

Therefore, Sin 30⁰/ 700

: θ / 750 = Sin 30⁰/ 700

θ = 36.87  

Now that we have θ, we can figure out ∅

Therefore,

∅ = 180°  − (30 °  + 36.87° )

Recalling that all interior angles in a triangle must add up to 180°

Therefore,

∅ = 113.13°

Now that we have both θ and ∅, we can go further to use the law of sines to find Fr.

Therefore,

Fr/Sin 113.13° = 700 / Sin 30 °

Fr = 919.61 Newton

Vlad1618 [11]2 years ago
4 0

Answer:

The force F = 318 and the angle 18.5°. The first thing to do is to resolve the forces into components along the x and y-axis and then equate it to Rx and Ry. R has no component along the x-axis since it is directed along the y-axis.

Explanation:

The detailed solution can be found in the attachment below. Thank you for reading.

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scoray [572]

Answer:

Object distance means what is the distance between pole and object. Image distance means when image is formed then the distance between pole and image is called image distance. Focal length is the distance between pole and the principal focus of the mirror.

A lens is a clear object, usually made of glass or plastic, which is used to refract, or bend light. Lenses can concentrate light rays (bring them together) or spread them out. Common examples of lenses include camera lenses, telescope lenses, eyeglasses, and magnifying glasses. Lenses are often double lenses, meaning they have two curved sides. A convex lens is rounded outward, while a concave lens curves inward. (A great way to remember this is that a concave lens creates an indent like a cave!)

The image distance can be calculated with the knowledge of object distance and focal length with the help of lens formula. In optics, the relationship between the distance of an image (i), the distance of an object (o), and the focal length (f) of the lens are given by the formula known as Lens formula. Lens formula is applicable for convex as well as concave lenses. These lenses have negligible thickness. It is an equation that relates the focal length, image distance, and object distance for a spherical mirror. It is given as,

1/i + 1/o = 1/f

i= distance of the image from the lens

o= distance of the object from the lens

f= focal length of the lens

Explanation:

Hope it is helpful....

7 0
2 years ago
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What causes the electric charges to flow from one end of the battery to the other? a balance in electric potential a balance in
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I think the correct answer from the choices listed above is the third option. It is the difference in electrical potential that causes the electric charges to flow from one end of the battery to the other. Hope this answers the question. Have a nice day.
8 0
3 years ago
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How many significant figures from 0,020170 kg ?<br> a. 3<br> b. 4<br> c. 5<br> d. 6<br> e. 7
Igoryamba
> Non-zero numbers (like 1,2,3,4...) are always significant
> A zero sandwiched between two non-zero numbers is always significant
> Trailing zeros in a decimal (not whole number like million) are always significant.

<span>0,020170 = 2.0170 × 10^-2

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4 0
3 years ago
During a certain time interval, a constant force delivers an average power of 4 watts to an object. if the object has an average
bija089 [108]
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3 years ago
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If you stood on a planet with four times the mass of Earth, and twice Earth's radius, how much would you weigh?
nikdorinn [45]

Answer:

1/4 times your earth's weight

Explanation:

assuming the Mass of earth = M

Radius of earth = R

∴ the mass of the planet= 4M

the radius of the planet = 4R

gravitational force of earth is given as = \frac{GM}{R^{2} }

where G is the gravitational constant

Gravitational force of the planet = \frac{G4M}{(4R)^{2} }

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recall, gravitational force of earth is given as = \frac{GM}{R^{2} }

∴Gravitational force of planet = 1/4 times the gravitational force of the earth

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3 0
3 years ago
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