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eduard
3 years ago
13

PLEASE HELP MEEEEEEEEE T.T

Physics
1 answer:
elena55 [62]3 years ago
4 0
By the way the link doesn’t work
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Scientists measure the ________ of isotopes in rocks to determine an approximate age.
Vlada [557]
I believe the answer is "radioactive decay".
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3 years ago
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Voltage needed to raise current to 3.75a using 20,20,200 resistor set
Varvara68 [4.7K]

<u>Answer:</u> The voltage needed is 35.7 V

<u>Explanation:</u>

Assuming that the resistors are arranged in parallel combination.

For the resistors arranged in parallel combination:

\frac{1}{R}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}

We are given:

R_1=20\Omega\\R_2=20\Omega\\R_3=200\Omega

Using above equation, we get:

\frac{1}{R}=\frac{1}{20}+\frac{1}{20}+\frac{1}{200}\\\\\frac{1}{R}=\frac{10+10+1}{200}\\\\R=\frac{200}{21}=9.52\Omega

Calculating the voltage by using Ohm's law:

V=IR         .....(1)

where,

V = voltage applied

I = Current = 3.75 A

R = Resistance = 9.52\Omega

Putting values in equation 1, we get:

V=3.75\times 9.52\\\\V=35.7V

Hence, the voltage needed is 35.7 V

7 0
3 years ago
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A ___ is awarded to the opposing team when that team violently or dangerously charges a opponent. ( in soccer)
Helen [10]

Answer:

(C)Direct kick

Explanation:

In a game of soccer (foot-ball) there are lots of rules involved in the game and there is penalty for each of the rules violated. Some of the rules include penalty kick, free kick, throw in, goal kick etc.

Free kick is of two types; direct kick and indirect kick.

Direct kick is awarded when a player outside 18 yards box violently or dangerously charges a opponent.

Indirect kick can be awarded when a goalkeeper inside 18 yards box commits certain offenses.

Therefore, the correction option is (C)Direct kick

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3 years ago
¿Qué información se puede obtener de un gráfico rapidez versus tiempo?
yaroslaw [1]

Answer:

la velocidad se mide con el tiempo del tiempo que tarda el tiempo se mide por la hora del día y el reloj

Explanation:

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What is the power in a circuit with a voltage of 120 V and a resistance of 50
k0ka [10]

Answer:

288W.

Explanation:

P = IV = V^2 / R = (120)^2 / 50 = 288W.

8 0
3 years ago
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