Ten seconds after starting from rest, a freely-falling object will have a speed of about _______________________

What force always attracts objects to each other ?

scoray [572]

I'm pretty your it's magnetism though. Like magnets

4 0

3 years ago

PLEASE HELP ME

Minchanka [31]

Answer:

4 seconds

Explanation:

bullet flies 200m/s. thus 800m/200m=4sec

7 0

3 years ago

E) VAVC

gogolik [260]

Answer:

b) tan a = 3

Explanation:

Draw a free body diagram (see attached).

There are three forces acting on the insect. Weight downwards, normal force towards the center of the hemisphere, and friction tangent to the surface.

Sum of the forces in the radial direction:

∑F = ma

N − mg cos α = 0

N = mg cos α

Sum of the forces in the tangential direction:

∑F = ma

μN − mg sin α = 0

Substituting:

μ(mg cos α) − mg sin α = 0

μ cos α − sin α = 0

μ cos α = sin α

μ = tan α

The maximum possible value of the angle is such that its tangent is equal to the coefficient of friction.

7 0

3 years ago

What are the highest form of rays in the spectrum?

d1i1m1o1n [39]

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3 years ago

How might scientists knowledge and monoculture farming effect societal decisions

Vesna [10]

This was given in our Chemistry subject so fortunately I hope this helps.

In mono culture farming, they produce a single specie of a livestock or plant in large number or quantity.

Yes it is very effective but producing a mass number of a single organism in a specific area will risk of endangering the existence of a certain and specific nutrient - this is because that large number of organism is basically eating the same thing.

This will actually lead to societal decision such as the founding of The Livestock conservancy and other environmental protection organization

4 0

3 years ago

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Ten seconds after starting from rest, a freely-falling object will have a speed of about ________________________