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3 years ago

Is a switch essential for a circuit to operate

Physics

1 answer:

antiseptic1488 [7]3 years ago

4 0

Answer:

yes it is essential

Explanation:

a switch is an electrical component that can disconnect or connect the conducting path in an electrical circuit; controls current flow into a circuit

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Please help me ;3 (ALSO REMEMBER IT SAYS SELECT TWO)

galben [10]

Answer:

B and C

Explanation:

It is a reaction between a component(chemical reaction).

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3 years ago

Read 2 more answers

The basis for defining the length of a day is the fact that question 21 options:

abruzzese [7]

B.earth rotates on its axis in 24 hours; i.e., it rotates 15° of longitude per hour.

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3 years ago

You've recently read about a chemical laser that generates a 20.0-cm-diameter, 26.0 MW laser beam. One day, after physics class,

aksik [14]

Answer :

(a). The speed of the block is 0.395 m/s.

(b). No

Explanation :

Given that,

Diameter = 20.0 cm

Power = 26.0 MW

Mass = 110 kg

diameter = 20.0 cm

Distance = 100 m

We need to calculate the pressure due to laser

Using formula of pressure

$P_{r}=\dfrac{I}{c}$

$P_{r}=\dfrac{P}{Ac}Put the value into the formula[tex]P_{r}=\dfrac{26.0\times10^{6}}{\pi\times(10\times10^{-2})^2\times3\times10^{8}}$

$P_{r}=2.75\ N/m^2$

We need to calculate the force

Using formula of force

$F=P\times A$

$F=P\times \pi r^2$

Put the value into the formula

$F=2.75\times\pi (0.01)^2$

$F=0.086\ N$

We need to calculate the acceleration

Using formula of force

$F=ma$

Put the value into the formula

$0.086=110\times a$

$a=\dfrac{0.086}{110}$

$a=0.000781\ m/s^2$

$a=7.81\times10^{-4}\ m/s^2$

(a). We need to calculate speed of the block

Using equation of motion

$v^2=u^2+2ad$

Put the value into the formula

$v=\sqrt{2\times7.81\times10^{-4}\times100}$

$v=0.395\ m/s$

(b). No because the velocity is very less.

Hence, (a). The speed of the block is 0.395 m/s.

(b). No

8 0

2 years ago

Are all liquids able to conduct an electric current

Alona [7]

The ions are able to carry electric current through a solution. Some liquids such as oil or alcohol do not form ions and do not conduct electricity. Vinegar is mostly water with a small amount of acetic acid in it. The acetic acid separates into ions on so that the solution conducts electricity. BRAINLIST ME PEASE

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2 years ago

Words that describe direction east, up, and left is it true or false

m_a_m_a [10]

Answer:

True

Explanation:

East, up, and left all define as a direction.

7 0

3 years ago