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Trava [24]
3 years ago
6

An object's motion changes A. only if the object is at rest when a force acts upon it. B. only when a nonzero net force is appli

ed to the object. C. when the forces acting on the object remain balanced. D. all of these
Physics
1 answer:
Tanzania [10]3 years ago
5 0
B,  only when a nonzero net force is applied, this means that the force is unbalanced, an object in motion stays in motion unless acted upon by an unbalanced force.
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How do I do balance equations?
san4es73 [151]

Answer:

1. Count the atoms of each element in the reactants and the products.

2. Use coefficients; place them in front of the compounds as needed.

Explanation:

4 0
3 years ago
An artillery shell is fired with an initial speed of 300m/s at 55 deegry about the horizontal,it explodes on a mountain side 42s
photoshop1234 [79]

Answer:

x = 7226.94 m

y = 1677.4 m

Explanation:

This is a classic problem of a parabolic move. Let's analyze the given data.

The speed is 300 m/s but it's fired at 55°, so the x and y component of the speed would be:

Vx = 300 cos55 = 172.07 m/s

Vy = 300 sin55 = 245.75 m/s

Now, to get the x and y components of the shell, we need to apply the following expressions:

X = Xo + Vx*t    (1)

Y = Yo + Vy*t - 1/2 gt²   (2)

Xo and Yo is 0, and we already have the speed in x and y, so the components are:

X = 0 + (172.07)(42)

<h2>X = 7226.94 m</h2>

For the y component:

Y = 0 + (245.75)(42) - 1/2 (9.8)(42)²

Y = 10321.5 - 8643.6

<h2>Y = 1677.4 m</h2><h2></h2>

Hope this helps

8 0
3 years ago
Most subduction-derived magma never reaches the surface. however, what is formed if this type of magma reaches the surface of a
Allushta [10]
The subduction zone is the zone in the crust of the Earth where tectonic plates meet.
Magma is a hot fluid formed in the crust. This fluid is the one from which lava is formed.

Most magma that is formed in this region never reaches the surface. However, if it does, belts of volcanoes will be formed.
8 0
3 years ago
The main reason a person becomes a supervisor is
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Well, a few main reasons would be that they have confidence in themselves, they have knowledge that is work related, and to me most important, motivation. You need to motivate yourself to do something if you want to acheive a goal right? Same idea.
6 0
4 years ago
Martina travels from her house to her moms office building, From there she walks to school. After school, she walks to the libra
Serjik [45]

Answer:

it matters how far she traveled

Explanation:

7 0
3 years ago
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