an electron is subject to a uniform time-independent magnetic field of strength b in the positive z direction at t=0
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At time t1, an electron is sent along the positive direction of a v axis, through both an electric field E and a magnetic field B with E directed parallel to the y axis. The figure gives the y component Fnet,y of the net force on the electron due to the two fields, as a function of the electron's speed v at time t1. The scale of the velocity axis is set by vs = 194 m/s. The x and z components of the net force are zero at t1. Assuming Bx = 0, find the magnitude of B in units of Tesla.
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At time $t_{1}$, an electron is sent along the positive direction of an $x$ axis, through both an electric field $\vec{E}$ and a magnetic field $\vec{B}$, with $\vec{E}$ directed parallel to the $y$ axi? Figure 28-33 gives the y component $F_{\text {net } y}$ of the net force on the electron due to the two fields, as a function of the electron's speed $v$ at time $t_{1}$. The scale of the velocity axis is set by $v_{s}=100.0 \mathrm{~m} / \mathrm{s}$. The $x$ and $z$ components of the net force are zero at $t_{1}$. Assuming $B_{x}=0$, find (a) the magni- tude $E$ and (b) $\vec{B}$ in unit-vector notation.
At time $t_{1},$ an electron is sent along the positive direction of an $x$ axis, through both an clectric field $\vec{E}$ and a magnetic field $\vec{B},$ with $\vec{E}$ directed parallel to the $y$ axis. Figure $28-33$ gives the $y$ component $F_{\text { net }, y}$ of the net force on the electron due to the two fields, as a function of the electron's speed $v$ at time $t_{1}$ . The scale of the velocity axis is set by $v_{s}=100.0 \mathrm{m} / \mathrm{s}$ . The $x$ and $z$ components of the net force are zero at $t_{1 .}$ Assuming $B_{x}=0,$ find (a) the magnitude $E$ and $(b) \vec{B}$ in unit-vector notation.
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