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3 years ago

Which most affects the path of a weather system in the united states

Physics

1 answer:

astra-53 [7]3 years ago

4 0

Heat will cause evaporation and some other things like a wild fire so it is the heat

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The capacitance of a fully-charged capacitor is 11 F. Determine the capacitor's capacitance when it is half charged.

Tcecarenko [31]

Answer:

The capacitance is 11 F for half and fully charged capacitor.

Explanation:

Capacitance of capacitor is given by the expression

$C=\frac{\epsilon A}{d}$

Where ε is the vacuum permittivity, A is the area of plates and d is the separation between plates.

So capacitance does not depend upon charge and potential. So capacitance fully and half charged capacitors are same.

Here the capacitance is 11 F for half and fully charged capacitor.

4 0

3 years ago

The energy spacing between levels 1 and 2 is twice that between 2 and 3. If an electron makes a transition from level 3 to level

vovikov84 [41]

Answer: $\lambda _3=\frac{\lambda }{3}$

Explanation:

Given

$E_3-E_2=\frac{hc}{\lambda }$

also $E_2-E_1=2\left ( E_3-E_2\right )$

Let wavelength produce during transition from 2 to 1 is $\lambda_0$

$\frac{hc}{\lambda _0}=2\frac{hc}{\lambda }$

$\lambda _0=\frac{\lambda }{2}$

For $E_3 to E_1 transition$

$E_3-E_1=E_3-E_2+E_2-E_1$

$E_3-E_1=\frac{hc}{\lambda }+2\frac{hc}{\lambda }$

$\frac{hc}{\lambda _3}=3\frac{hc}{\lambda }$

$\lambda _3=\frac{\lambda }{3}$

5 0

3 years ago

A student throws a set of keys vertically upward to his fraternity brother, who is in a window 4.35 m above. The brother's outst

-BARSIC- [3]

Answer:9.51 m/s

Explanation:

Given

Window is 4.35 m above ground

time taken=1.2 s

Let u be the initial velocity of keys

$s=ut+\frac{gt^2}{2}$

where s=distance traveled

u=initial velocity

t=time taken

g=acceleration due to gravity

$4.35=u\times 1.2+\frac{(-9.8)1.2^2}{2}$

$u=\frac{11.4132}{1.2}=9.511 m/s$

(b)velocity of keys just before they were caught

v=u+at

$v=9.511-9.8\times 1.2$

v=-2.26 m/s

Here negative sign indicates downward motion of keys

8 0

3 years ago

Three identical resistors have an equivalent resistance of 85 ω when connected in parallel. part a what is their equivalent resi

pishuonlain [190]

The equivalent resistance of the three resistors when connected in parallel is:
$\frac{1}{R_{eq}} = \frac{1}{R_1}+ \frac{1}{R_2}+ \frac{1}{R_3}$
Since the three resistors in this problem are identical, we can call R their resistance, and we can rewrite the previous equation as
$\frac{1}{R_{eq}} = \frac{1}{R}+ \frac{1}{R}+ \frac{1}{R}= \frac{3}{R}$
And since we know the value of the equivalent resistance, $R_{eq}=85 \Omega$ , we can find the value of R:
$R=3 R_{eq} = 3 \cdot 85 \Omega=255 \Omega$

Now the problem asks us what is the equivalent resistance of the three resistors when they are connected in series. In this case, the equivalent resistance is just the sum of the three resistances, so
$R_{eq} = R+R+R=3 R= 3 \cdot 255 \Omega = 765 \Omega$

7 0

3 years ago

Read 2 more answers

Complete these sentences using the words in the box . You can use each word more than once

vredina [299]

Answer:

1. friction 2. temperature 3. by heating 4. wasted 5. thermal 6. friction 7. lubricating

Explanation:

4 0

3 years ago