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3 years ago

What is the shape of the trajectory that a charged particle follows in a uniform magnetic field?

Physics

1 answer:

Darya [45]3 years ago

5 0

Answer:

circle

Explanation:

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An outdoor Wi-Fi unit for a picnic area has a 110 mW output and a range of about 38 m. What output power (in mW) would reduce it

valkas [14]

Answer:

The output power is 24.68 mW.

Explanation:

Given that,

Power = 110 mW

Range = 38 m

Reduced range = 18 m

We need to calculate the power

Using formula of intensity

$I=\dfrac{P}{A}$

$I=\dfrac{P}{\pi r^2}$

As intensity is constant

$P\propto r^2$

So, $\dfrac{P_{1}}{P_{2}}=\dfrac{r_{1}^2}{r_{2}^{2}}$

$P_{2}=\dfrac{r_{2}^2}{r_{1}^{2}}\timesP_{1}$

Put the value into the formula

$P_{2}=\dfrac{18^2}{38^2}\times110\times10^{-3}$

$P_{2}=24.68\times10^{-3}\ W$

$P_{2}=24.68\ mW$

Hence, The output power is 24.68 mW.

8 0

4 years ago

Please guys i need help in this

JulijaS [17]

Answer:

10 seconds

Explanation:

We have the equation V = at (speed = acceleration x time)

We want to find the time, so can rearrange to T = V/a (time = speed / acceleration).

From the question, we know V is 5 and a is 0.5.

Now we can substitute that into our equation: 5/0.5 = 10.

So the time is 10 seconds.

Hope this helps! Let me know if you have any questions :)

8 0

3 years ago

Which of the following is not a primary cause of eroding rock

Pavel [41]

The answer to this is Animal habitation

4 0

4 years ago

A resistor, capacitor, and switch are all connected in series to an ideal battery of constant terminal voltage. Initially, the s

erma4kov [3.2K]

Answer:

The voltage across the resistor is zero, and the voltage across the capacitor is equal to the terminal voltage of the battery.

Explanation:

This is because when a capacitor is charged no current or voltage flows through it so it will have a voltage equal to the terminal voltage of the battery

6 0

3 years ago

PLEASE HELP FAST

love history [14]

a. Independent variable: <em>TIME </em>

b. Dependent variable: <em>DISTANCE</em>

4 0

3 years ago