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3 years ago

A circuit is built based on this circuit diagram.

Physics

2 answers:

NeX [460]3 years ago

4 0

Answer:

1.6

Explanation:

uranmaximum [27]3 years ago

3 0

$\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}$

Actually Welcome to the concept of resistors,

The equivalent circuit is given as,

1/Rp = 1/3 + 1/6 + 1/9

1/Rp = 6+3+2/18

1/Rp = 11/18

Rp = 18/11 ==> 1.63 ==> 1.6 ohms

hence the equivalent resistance of the circuit is 1.6 ohms

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One mole of helium atoms has a mass of 4 grams. If a helium atom in a balloon has a kinetic energy of 2.176 × 10^-21J, what is t

Mrrafil [7]

Answer:

$v=1.043\times 10^{-9}\ m/s$

Explanation:

The expression for kinetic energy is:

$K.E.=\frac {1}{2}\times m\times v^2$

K.E. is the kinetic energy = $2.176\times 10^{-21}\ J$

m is the mass = 4 g = 0.004 kg (As 1 g = 0.001 kg)

v is the velocity

Applying values as:

$2.176\times 10^{-21}=\frac{1}{2}\times 0.004\times v^2$

$v^2=\frac{2.176\times 10^{-21}\times 2}{0.004}$

$v=\sqrt{\frac{4.352}{10^{21}\times \:0.004}}$

$v=1.043\times 10^{-9}\ m/s$

8 0

3 years ago

Interactive Solution 22.25 offers some help for this problem. A copper rod is sliding on two conducting rails that make an angle

dalvyx [7]

Answer:

The magnitude of average EMF induced in triangle is 0.0637

Explanation:

Induced EMF = (change in Magnetic Flux Density x Area)/change in Time

EMF = - ΔΦ /Δt

$=-Bdelta A/delta(t)\\=-B(1/2AC.BC)/delta(t)\\AC=Vdelta(t)\\BC=Vdelta(t)tan(theta)\\=-BV^2delta(t)tan(theta)/2\\EMF=0.0637V$

7 0

4 years ago

An automobile having a mass of 1,000 kg is driven into a brick wall in a safety test. The bumper behaves like a spring with cons

vlada-n [284]

Answer:

$v=2.02\frac{m}{s}$

Explanation:

Assuming no energy lost, according to the law of conservation of energy, the kinetic energy of the automobile becomes potential energy after the crash:

$K=U\\\frac{mv^2}{2}=\frac{kx^2}{2}$

Here m is the automobile's mass, v is the speed of the car before impact, k is the "bumper" constant and x is the compression of the bumper due to the collision. Solving for v:

$v=x\sqrt\frac{k}{m}\\v=2.63*10^{-2}m\sqrt{\frac{5.9*10^6\frac{N}{m}}{10^3kg}}\\v=2.02\frac{m}{s}$

8 0

3 years ago

Where does the atmosphere of the Earth end? (i.e. Where is the top of the Earth's atmosphere?) Where does the atmosphere of the

galben [10]

Answer:

b. There is no definite top to the atmosphere. The pressure and density gradually get smaller as the altitude gets larger.

Explanation:

There is no specific top of the atmosphere. It varies from place to place. But generally it is considered to be 480 kilometers thick. But majority of its thickness is limited to 16 km only above earth surface. The pressure and density gradually get smaller as the altitude gets larger. The air pressure at sea level is 14.7 pounds per square inch and it decreases to 10 pounds per square inch at a height of 3 kilometers. From the above discussion we say that option B is correct

7 0

3 years ago

HELP ME PLEASEEEEEEEEEEEEEE

ozzi

Answer: The correct statements are:

The atoms are very attracted to one another.
The atoms are held tightly together.

Explanation:

Solid state: In this state, the molecules are closely packed and cannot move freely from one place to another that means no space between them and the intermolecular force of attraction between the molecules are strong.

In solid substance, the particles are very close to each other due to this the intermolecular forces of attraction are strongest.

The key point about solid are:

The atoms are very attracted to one another.
The atoms are not moving freely.
It will not spread out evenly to fill any container.
The atoms are held tightly together.
The forces of attraction are strong to bring molecules together.
The atoms are close and in fixed positions.

7 0

3 years ago