Other Problem Solutions: Expert Help and Step-by-Step Explanation

Two large parallel copper plates are 5.0 cm apart and have auniform electric field between them as depicted in Figures. Anelectron is released from the negative plate at the same time thata proton is released from the positive plate. Neglect the force ofthe particles on each other and find their distance from thepositive plate when they pass each other.

An infinitely long rod of radius R carries a uniform volume charge density $\rho (\rho >0)$.
a) Show how to use Gauss' Law to prove that the electric field inside this rod points radially outward and has magnitude.
${\displaystyle E=\frac{\rho \cdot r}{2\cdot {ϵ}_0}}$
b) Integrate the electric field over an appropriate displacement to find the potential difference from the rod's surface to its axis. State explicity which of those two locations is at the higher potential.

A.Which figure illustrates the loop that must be utilized as the Ampèrean loop to locate the solenoid inside?
B. Locate the magnetic field's z component where Ampères is located inside the solenoid.

Given ${\displaystyle \csc \left(t\right)=\left[\frac{-12}{7}\right]\text{and}{\displaystyle [(-\frac{\pi }{2})<t<\left(\frac{\pi }{2}\right)]}}$ .
Find $\sin t,\cos t\text{and}\tan t.$ Give exact answers without decimals.

Calculate the magnitude of the linear momentum for the following cases:
a) a proton with mass ${\displaystyle 1.67\times {10}^{-27}}$ kg, moving with a speed of ${\displaystyle 5.00\times {10}^6}$ m/s
b) a 15.0-g bullet moving with a speed of 300 m/s
c) a 75.0-kg sprinter running with a speed of 10.0 m/s
d) Earth (mass ${\displaystyle =5.98\times {10}^{24}}$ kg) moving with anorbital speed equal to ${\displaystyle 2.98\times {10}^4}$ m/s.

$\{\begin{array}{l}2x-y=9\\ 2x+7y=17\end{array}$

Consider a body that moves horizontally through a medium whoseresistence is proportional to the square of the velocity v, so that ${\displaystyle \frac{dv}{dt}=-k{v}^2}$. Show that
${\displaystyle \nu \left(t\right)=\frac{{\nu }_0}{(1+v_{0}kt)}\text{and}t\hat{x}\left(t\right)=x_0+\frac{1}{k}\ln (1+v_{0}kt)}$
Note that $x(t){\displaystyle \to +\mathrm{\infty }ast\to +\mathrm{\infty }}$
Help, I don't get this lesson  there's a quiz like thistomorrow. Thank you in advance.

Given the following matrices:
$A=\left[\begin{array}{ccc}1& 2& 9\\ -1& 2& 0\\ 0& 0& 4\end{array}\right]B=\left[\begin{array}{cc}0& -1\\ 2& 6\end{array}\right]C=\left[\begin{array}{cc}2& 1\\ 0& 0\end{array}\right]D=\left[\begin{array}{c}1\\ 2\\ -4\end{array}\right]$
Identify the following:
a) A-B
b) B+C
c) C-D
d) B-C

A 17.8 kg flood light in a park is supported at the end of a horizontal beam of negligible mass that is hinged to a pole. A cable connected to the beam helps to support the light. (In thefigure, ${\displaystyle \theta }$ = 34.2 degrees. Find (A) The tension in the cable and (B) the horizontal and (C) vertical forces exerted on the beamby the pole.

(A) 320 N
(B) 250 N
(C) 0

If a simple has a mass of 63.5 g when weighed in the air and an apparent mass of 56.4 g when submerged in water, what is the most likely identity of the metal?

A black body at 7500K consists of an opening of diameter 0.0500mm, looking into an oven. Find the number of photonsper second escaping the hole and having wavelengths between 500nm and 501nm. Hint: use equation 40.6 for $I(\lambda ,T)$; then find $Power=I(\lambda ,T)(\lambda 1-\lambda 2)$  Area; then set $\frac{nhc}{\lambda }=Power\times 1$  second and solve for n, thenumber of photons emitted in 1second. Let $\lambda =\frac{1}{2}(\lambda 1+\lambda 2)$