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mart [117]
3 years ago
15

A charged particle is injected at 211 m/s into a 0.0633‑T uniform magnetic magnetic field perpendicularly to the field. The diam

eter of its orbit is measured and found to be 0.0389 m. What is the charge–to–mass ratio of this particle?
Physics
1 answer:
lakkis [162]3 years ago
7 0

Answer:

85.68*10^3C/kg

Explanation:

For this problem we need the concept about Force in a Magnetic field,

For definition we know that

F=m\frac{v^2}{r}

Where v is the velocity, m the mass and r the radius or distance between the two points.

We know as well that

F = qvB

where q is the charge of a proton

v the velocity and B the magnetic field, then matching the two equation,

qvB=m\frac{v^2}{r}

Re-arrange for q/m (charge to mass ratio)

\frac{q}{m} = \frac{v}{Br}

Our values are,

v=211m/s

B= 0.0633T

r=0.0389m

Substituting,

\frac{q}{m} = \frac{211}{0.0633*0.0389}

\frac{q}{m} = 85689.8 C/kg = 85.68*10^3C/kg

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Answer:

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3 years ago
Which countries have high productivity, but are not among the top 10 for human development? Check all that apply.
trasher [3.6K]

Answer:

Belgium

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Explanation:

These are the ones that are in the High Productivity chart, but not in the HDI chart

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3 years ago
Two identical charges,2.0m apart,exert forces of magnitude 4.0 N on each other.What is the value of either charge?
storchak [24]

Answer:

\large \boxed{42\, \mu \text{C}}$

Explanation:

The formula for the force exerted between two charges is

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The charges are identical, so we can write the formula as

F=k\dfrac{q^{2}}{r^2}

\begin{array}{rcl}\text{4.0 N}& = & 8.988 \times 10^{9}\text{ N$\cdot$m$^{2}$C$^{-2}$} \times \dfrac{q^{2}}{\text{(2.0 m)}^{2}}\\\\4.0 & = & 2.25 \times 10^{9}\text{ C$^{-2}$} \times q^{2}\\\\q^{2} & = & \dfrac{4.0}{2.25 \times 10^{9}\text{ C$^{-2}$}}\\\\& = & 1.78 \times 10^{-9} \text{ C}^{2}\\q & = & 4.2 \times 10^{-5} \text{ C}\\& = & 42\, \mu \text{C}\\\end{array}\\\text{Each charge has a value of $\large \boxed{\mathbf{42\, \mu }\textbf{C}}$}

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3 years ago
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Answer:

I do not have  enough information to tell

Explanation:

This is deduced due to the fact that if the net force due to B and C on A is zero, the charges on B and C could either be positive or negative depending on the charge on A.

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3 years ago
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Rom4ik [11]

there here is your answer to your question

Uncertainty in measurements and calculations means difference between actual and measured data. We can say that all measurements have some degree of uncertainty. ... Systematic error (because of error in measuring instrument) 2. Random error (human errors such as- delay in starting, delay in stopping).

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2 years ago
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