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Nezavi [6.7K]
3 years ago
14

In your own words, explain what non-contact forces are.

Physics
1 answer:
katrin [286]3 years ago
4 0
It’s a force which acts on an object without coming physically in contract with it.
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A 0.20 kg mass is oscillating at a small angle from a light string with a period of 0.78 s.
Scorpion4ik [409]

Answer:

L = 15 cm

Explanation:

T = 2π√(L/g)

L = g(T/2π)²

L = 9.8(0.78/2π)²

L = 0.151027... m

L = 15 cm

7 0
3 years ago
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What is a property of “normal force”? a. It always points perpendicular to the contact surface. b. It always points parallel to
OleMash [197]

Answer:

a. It always points perpendicular to the contact surface.

Explanation:

"Normal" means perpendicular.  Normal forces are always perpendicular to the contact surface.

6 0
3 years ago
Solve for the length of the inclined plane if the angle equals 19.45 degrees.
mel-nik [20]

The length of the inclined plane is approximately 12 ft

The situation forms a right angle triangle.

<h3>Right triangle</h3>

Right triangle have one of its angle as 90 degrees.

Therefore,

The length of the inclined plane is the hypotenuse of the triangle. The length of the inclined plane can be found using trigonometric ratios.

height = 4 ft

angle(∅) = 19.45°

sin 19.45 = 4 / h

h = 4 / 0.33298412235

h = 12.0125847796

h = 12 ft

Therefore, the length of the inclined plane is approximately 12 ft

learn more on inclined plane:brainly.com/question/14163589?referrer=searchResults

5 0
2 years ago
What two measuring units can i use to measure the distance
riadik2000 [5.3K]
Feet and inches or millimeters or centimeters or meters or miles or kilometers
8 0
3 years ago
PLS HELP!!! WILL GIVE BRAINLIEST
grandymaker [24]

Answer:

did you ever get the answer

8 0
2 years ago
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