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Alona [7]
3 years ago
5

If atoms are made of smaller parts, why are they considered the basic unit of matter

Physics
1 answer:
sleet_krkn [62]3 years ago
4 0

It is because they cannot be divided. Everything is made up of atoms and they are the building blocks of every piece of matter.

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For the ballistic missile aimed to achieve the maximum range of 9500 km, what is the maximum altitude reached in the trajectory
liraira [26]

Explanation:

The range <em>R</em> of a projectile is given the equation

R = \dfrac{v_0^2}{g}\sin{2\theta}

The maximum range is achieved when \theta = 45° so our equation reduces to

R_{max} = \dfrac{v_0^2}{g}

We can solve for the initial velocity v_0 as follows:

v_0^2 = gR_{max} \Rightarrow v_0 = \sqrt{gR_{max}}

or

v_0 = \sqrt{(9.8\:\text{m/s}^2)(9.5×10^6\:\text{m})}

\:\:\:\:\:\:\:=9.6×10^3\:\text{m/s}

To find the maximum altitude H reached by the missile, we can use the equation

v_y^2 = v_{0y}^2 - 2gy = (v_0\sin{45°})^2 - 2gy

At its maximum height H, v_y = 0 so we can write

0 = (v_0\sin{45°})^2 - 2gH

or

H = \dfrac{(v_0\sin{45°})^2}{2g}

\:\:\:\:\:\:= \dfrac{[(9.6×10^3\:\text{m/s})\sin{45°}]^2}{2(9.8\:\text{m/s}^2)}

\:\:\:\:\:\:= 2.4×10^6\:\text{m}

7 0
2 years ago
When an object moves, stops moving, changes speed, or changes direction, how do scientists describe that condition? Question 1 o
Dominik [7]

If an object moves, stops, changes speed, or even changes direction, then that condition represents the unbalanced force condition.

Unbalanced Force:

The unbalanced force is the magnitude of the net force that tends to cause the motion of objects. It is nothing but the greater amount of force to be applied to the object to displace the object in either direction.

If an object is moving, stopping, changing the speed, or changing the direction, then such activities directly show that the object is changing its state of motion. And the change in the motion is only caused when there is some magnitude of force associated with it.

  • When the magnitude of forces applied on an object such that one force is greater than another in a specific direction, then such forces are known as unbalanced forces.
  • Unbalanced forces cause motion, which means a body can move, stop or even can change its direction due to the unbalanced force.

Thus, we can conclude that if an object moves, stops, changes speed, or even changes direction, then that condition represents the unbalanced force condition.

Learn more about the forces here:

brainly.com/question/26115859

4 0
2 years ago
PLEASE HELP ME I AM TIMED!
Crank

Answer:

violet has the highest frequency

Explanation:

7 0
3 years ago
What is Virtual Lab and what does people use it for and why they use it?
Dafna1 [17]

The Virtual Laboratory is an interactive environment for creating and conducting simulated experiments: a playground for experimentation. It consists of domain-dependent simulation programs, experimental units called objects that encompass data files, tools that operate on these objects

7 0
3 years ago
A speed-time graph is shown below:
Juliette [100K]

Answer:

It traveled 4 centimeters.

Explanation:

In a speed versus time graph, the distance travelled is given by the area under the graph.

In this graph we have the following:

- The speed of the object is v = 1 cm/s between time t = 0 s and t = 4 s

- The speed of the object is v = 0 cm/s between time t = 4 s and t = 8 s

Since the speed in the second part is zero, the distance travelled in the second part is zero. So, the only distance travelled by the object is the distance travelled during the first part, which is equal to the area of the first rectangle:

d=v\Delta t=(1)(4-0)=4 cm

4 0
3 years ago
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