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babunello [35]
3 years ago
13

Particles in a warmer block will have

Physics
1 answer:
forsale [732]3 years ago
8 0

Answer:

more/ faster

Explanation:

I got it right on my test

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What average force is needed to accelerate a 7.00-gram pellet from rest to 155 m/s over a distance of 0.600 m along the barrel o
leonid [27]

Answer: The force needed is 140.22 Newtons.

Explanation:

The key assumption in this problem is that the acceleration is constant along the path of the barrel bringing the pellet from velocity 0 to 155 m/s. This means the velocity is linearly increasing in time.

The force exerted on the pellet is

F = m a

In order to calculate the acceleration, given the displacement d,  

d = \frac{1}{2}at^2\implies a=\frac{2d}{t^2}

we will need to determine the time t it took for the pellet to make the distance through the barrel of 0.6m. That time can be determined using the average velocity of the pellet while traveling through the barrel. Since the velocity is a linear function of time, as mentioned above, the average is easy to calculate as:

\overline{v}=\frac{1}{2}(v_{end}-v_{start})=\frac{1}{2}(155-0)\frac{m}{s}=77.5\frac{m}{s}

This value can be used to determine the time for the pellet through the barrel:

t = \frac{d}{\overline{v}}=\frac{0.6m}{77.5\frac{m}{s}}\approx0.00774s

Finally, we can use the above to calculate the force:

F = ma = m\frac{2d}{t^2} = 0.007kg\cdot \frac{2\cdot 0.6 m}{0.00774^2 s^2}\approx 140.22N



8 0
3 years ago
How many meters per second is a wave going if it travels a distance of one mile in 0.0012 hours
PtichkaEL [24]

Answer:

Explanation I don’t know :

5 0
3 years ago
A projectile is fired with a velocity of 22 m/s at an angle of 25°. What is the vertical component of the velocity?
7nadin3 [17]

Answer:

Vertical component of velocity is 9.29 m/s

Explanation:

Given that,

Velocity of projection of a projectile, v = 22 m/s

It is fired at an angle of 22°

The horizontal component of velocity is v cosθ

The vertical component of velocity is v sinθ

So, vertical component is given by :

v_y=v\ sin(25)

v_y=22\ m/s\times\ sin(25)

v_y=9.29\ m/s

Hence, the vertical component of the velocity is 9.29 m/s

3 0
4 years ago
Why can't passenger planes fly very high?
nalin [4]
The higher in the atmosphere, the less oxygen, and the more cold temperatures.

The material/moisture on the plane would freeze and damage the engine.
8 0
3 years ago
Read 2 more answers
What is the best description of the end result of chemical bonding for most
forsale [732]

A. Getting a full set of valence electrons

Explanation:

The best description of the end result of chemical bonding for most atoms is the getting of a full set of valence electrons.

Atoms reacts with one another in order to complete valence electronic shell.

  • The valence electron shell is the outermost energy level of an atom.
  • It is from this energy level that electrons are lost or gained to form bonds.
  • All atoms wants to be like the noble gases whose valence electronic shell is completely filled up
  • This is the crux of chemical bonding
  • The attraction that is produced from the interaction leads to bond formation

learn more:

Chemical bond brainly.com/question/10903097

#learnwithBrainly

7 0
3 years ago
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