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mixas84 [53]
3 years ago
13

Is velocity related to momentum

Physics
2 answers:
MakcuM [25]3 years ago
7 0
Yes momentum is expressed as mass * velocity:

p = m * v

p: momentum
m: mass
v: velocity
enot [183]3 years ago
6 0
Yes
momentum=mass x velocity
or you could rearrange the formula to find velocity = momentum/mass (you get this by dividing both sides in the original equation by mass)
you could also get that mass= momentum/velocity (you get this by rearranging both sides of the original equation by velocity) 
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4. How many neutrons are there in an atom of protium? Deuterium? Tritium? <br> P
insens350 [35]
The main difference between protium, deuterium, and tritium is that protium has no neutrons in its nuclei, whereas deuterium is composed of one neutron and tritium is composed of two neutrons [17]. Protium is an isotope of hydrogen that is composed of one proton and one electron.
6 0
3 years ago
What is the unit of measurement for power?<br> A. m/s2<br> B. watts<br> C. joules<br> D. newtons
anyanavicka [17]

Power is the rate of doing work or using energy.

The unit of power is the watt.

         1 watt  =  1 joule per second
 
8 0
3 years ago
Depict the following path: You drive 14 blocks East, 7 blocks North, and 2 blocks West. Use the vertex of the graph (coordinates
horrorfan [7]

Answer:

Displacement = 12\hat{i} +7\hat{j}

Magnitude of displacement = 13.89 units

Angle of displacement = 30.26°

Explanation:

Mark the co-ordinates of each of the end points of the vectors.

The marked co-ordinates are shown below.

Displacement is the shortest distance between two points. Here, displacement between the starting and end points is the vector \overrightarrow{OA}.

Displacement vector for a point A(x,y) from origin O is given as:

\overrightarrow{OA}=(x-0)\hat{i}+(y-0)\hat{j}

Magnitude is given as:

|\overrightarrow{OA}|=\sqrt{x^{2}+y^{2}}

Direction of the vector is given as:

\theta=tan^{-1}\frac{y}{x}

Therefore, displacement vector is:

\overrightarrow{OA}=(12-0)\hat{i}+(7-0)\hat{j}\\ \overrightarrow{OA}=12\hat{i}+7\hat{j}

Magnitude of displacement is given as:

|\overrightarrow{OA}|=\sqrt{x^{2}+y^{2}}\\ |\overrightarrow{OA}|=\sqrt{12^{2}+7^{2}}\\ |\overrightarrow{OA}|=\sqrt{144+49}\\\\ |\overrightarrow{OA}|=13.89

Angle of displacement is:

tan\theta=\frac{y}{x} =\frac{7}{12}\\\theta=tan^{-1}(\frac{7}{12})

\theta=30.26°

8 0
4 years ago
A 2.00-kg object traveling east at 20.0 m/s collides with a 3.00-kg object traveling west at 10.0 m/s.
ELEN [110]
Momentum = mass x velocity

Before collision
Momentum 1 = 2 kg x 20 m /s = 40 kg x m/s
Momentum 2 = 3 kg x -10m/s = -30 kg x m/s

After collision
Momentum 1 = 2 kg x -5 m/s = -10 m/s
Momentum 2 = 3 kg x V2 = 3V2

Total momentum before = total momentum after
40 + -30 = -10 + 3V2
V2 = <span>6.67 m/s

Total kinetic energy before
</span><span>= (1/2) [ 2 kg * 20 m/s * 2 + 3 kg * ( -10 m/s) *2 ]
= 550 J
</span>
<span>Total kinetic energy after
</span>= (1/2) [ 2 kg * ( - 5 m/s) * 2 + 3 kg * 6.67 m/s *2 ]
= 91.73 J

Total kinetic energy lost during collision
=<span>550 J - 91.73 J
= 458.27 J</span>

8 0
3 years ago
Read 2 more answers
Which statement is a scientifically accurate description of velocity?
ella [17]

Answer The last one is you answer

Explanation:

8 0
3 years ago
Read 2 more answers
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