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3 years ago

9

PLS ANSWER FAST WILL GIVE BRAINLEST!!!!

1 answer:

Romashka [77]3 years ago

3 0

Answer:

36400N

Explanation:

f =9100×4

f=36400N

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A typical wall outlet voltage is 120 volts in the United States. Personal MP3 players require much smaller voltages, typically 2

butalik [34]

Answer:

Number of turns in secondary will be 7

Explanation:

We have given primary voltage $V_p=120volt$

Number of turns in the primary is $N_p=3575$

Secondary voltage is given $V_s=235mV=0.235volt$

We have to find the number of turns in secondary

We know that $\frac{N_p}{N_s}=\frac{V_p}{V_s}$

So $\frac{3575}{N_s}=\frac{120}{0.235}$

$N_s=6.60$

As the number of turns can not be in decimal so number of turns will be 7

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3 years ago

Use the drop-down menus to show the development of the atomic theory from the oldest theory (1) to the most recent theory (5).

lesya692 [45]

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1

3

5

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Explanation:

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What happens during nuclear fission?

Free_Kalibri [48]

Answer:

D

Explanation:

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Are you using more or less power if you take the same amount of time to do more work

Alex777 [14]

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A 0.10- kg ball is thrown straight up into the air with

mezya [45]

Answer:(a)0,(b)1.061 kg-m/s

Explanation:

Given

mass of ball is 0.10 kg

Initial speed is 15 m/s

Maximum height reached by ball is h

$v^2-u^2=2as$

final velocity =0

$-\left ( 15\right )^2=-2\times 9.81\times s$

$s=\frac{15^2}{2\times 9.81}=11.467 m$

thus momentum of ball at maximum height is 0 as velocity is zero

For halfway to maximum height

$v^2-u^2=2as_0$

where $s_0=\frac{11.467}{2}$

$s_0=5.73 m$

$v^2=15^2-2\times 9.81\times 5.73$

v=10.61 m/s

Thus its momentum is

$mv=0.10\times 10.61=1.061 kg-m/s$

3 0

3 years ago