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Setler79 [48]
3 years ago
7

You are trying to move a chair of mass 29.0 kg by pushing it 30* below horizontal, but it is not sliding very easily. The coeffi

cient of kinetic friction between the chair and the floor is 0.625 and the resistive force is 283.6N.
(a) What is the normal force?
(b) What is the value of the angled force that will keep the chair moving at a constant velocity?
Physics
1 answer:
valina [46]3 years ago
7 0
A 3,000-N force gives an object an acceleration of 15 m/s2. The mass of the object is ____.

200 kg

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Two tiny, spherical water drops, with identical charges of −8.00 ✕ 10^(−17) C, have a center-to-center separation of 2.00 cm.
Damm [24]

Answer:

F=1.4384×10⁻¹⁹N

Explanation:

Given Data

Charge q= -8.00×10⁻¹⁷C

Distance r=2.00 cm=0.02 m

To find

Electrostatic force

Solution

The electrostatic force between between them can be calculated from Coulombs law as

F=\frac{kq^{2} }{r^{2} }

Substitute the given values we get

F=\frac{(8.99*10^{9} )*(-8.00*10^{-17} )^{2} }{(0.02)^{2} }\\ F=1.4384*10^{-19} N

7 0
3 years ago
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Katyanochek1 [597]

Answer:

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Explanation:

3 0
2 years ago
If you were trying to kill a fish witha a spear, woukd you ain where you see the fish?
patriot [66]
No, you can't aim where you see the fish, because refraction will change the position of the fish and make it appear in a different position from where it actually is.

Hope this helps!
8 0
3 years ago
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ANTONII [103]

Answer:

motion energy to sound energy

Explanation:

you move your hands together, then clap then, which makes a sound. Hope that this helps you and have a great day :)

6 0
2 years ago
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An astronaut on a space walk floats a little too far away
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He can throw it away from himself.

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