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Wittaler [7]
3 years ago
8

Big bang theorists believe that the universe is expanding and will eventually contract.

Physics
1 answer:
Zina [86]3 years ago
6 0

The statement ‘Big bang theorists believe that the universe is expanding and will eventually contract’ is false. The answer is letter B. The big bang theory suggests that the origin of the universe began with that exploded and expanded. It also states that the universe began in a single form of high condensed reactive matter and exploded forming the galaxies, planets, stars and other celestial bodies.

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2) If the current in any circuit reach to infinity then its resistance becomes
sveta [45]

Given that,

Current = ∞

We know that,

Ohm's law :

Ohm's law is defined as,

The voltage of the circuit is directly proportional to the current of the circuit.

V\propto I

Or,

The voltage of the circuit is equal to the product of current and resistance.

In mathematically,

V=IR

Where, V = voltage

I = current

R = resistance

According to ohm's law,

The current in the circuit is

I=\dfrac{V}{R}

If the current is very less then the resistance will be infinity.

If the is reach to infinity then the resistance will be very low.

Hence, The resistance becomes very low.

3 0
3 years ago
Which of the following processes forms clouds A. Boiling B.Condensation C.Freezing D.Precipitation
love history [14]

Answer:

B

Explanation:

6 0
3 years ago
Read 2 more answers
Three points A, B and C are located along a horizontal line. A positive test charge is released from rest at C and accelerates t
iVinArrow [24]
B is the answer hope this helps with the time bus boy
4 0
2 years ago
PERSONAL QUESTION <br> if a bird can fly why can't a fly just bird ?​
Sergeeva-Olga [200]

Answer:

counter question if you get out the shower clean then how does your towel get dirty?

3 0
3 years ago
Read 2 more answers
An automobile steering wheel is shown. What is the ideal mechanical advantage? If the AMA is 8, what is the efficiency of the st
Mars2501 [29]

1. Ideal Mechanical Advantage (IMA): 9

Explanation:

For a wheel and axle system like the steering wheel, the IMA is given by:

IMA=\frac{r_w}{r_a}

where

r_w is the radius of the wheel

r_a is the radius of the axle

For the steering wheel of the problem, we see that r_w = 18 cm and r_a=2 cm, so the IMA is

IMA=\frac{18 cm}{2 cm}=9


2. Efficiency: 88.9%

Explanation:

The efficiency of a system is defined as the ratio between the AMA (actual mechanical advantage) and the IMA:

\eta=\frac{AMA}{IMA}\cdot 100

In this problem, AMA=8 and IMA=9, so the efficiency is

\eta=\frac{8}{9}\cdot 100=88.9\%


6 0
3 years ago
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