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3 years ago

What is the freezing point of water in Kelvin?

Physics

1 answer:

monitta3 years ago

8 0

Answer:

the correct answer is 273.2 k

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Whats the kinetic energy of an object that has a mass of 12 kilograms and moves with a velocity of 10 m/s

Vesnalui [34]

Answer:

600J

Explanation:

1/2mv^2

1/2(12)(10^2)

6(100)

600

7 0

3 years ago

Compare the magnitude of the magnetic field at the center of a circular current loop of radius 30 mm with the magnitude of the m

NISA [10]

Answer:

Ratio of magnetic field will be $\frac{B}{B'}=0.0055$

Explanation:

We have given radius of the loop r = 30 mm = 0.03 m

We know that magnetic field at the center of the loop is given by

$B=\frac{\mu _0i}{2r}$ ---------eqn 1

Number of turns in the solenoid is given as n = 3 turn per mm = 3000 turn per meter

We know that magnetic field due to solenoid is given by

$B'=n\mu _0i$ -------------eqn 2

Now dividing eqn 1 by eqn 2

$\frac{B}{B'}=\frac{\frac{\mu _0i}{2r}}{\mu _0ni}=\frac{1}{2nr}=\frac{1}{2\times 3000\times 0.03}=0.0055$

4 0

3 years ago

What would happen if a solid temperature increases

Ber [7]

It will increase in size

7 0

3 years ago

Current passes through a solution of sodium chloride. In 1.00 s, 2.68×1016Na+ ions arrive at the negative electrode and 3.92×101

Tanzania [10]

Explanation:

Given that,

Number of sodium ions at the negative electrode, $Na^+=2.68\times 10^{16}$

Number of chloride ions at the positive electrode, $Cl^-=3.92\times 10^{16}$

(a) The current flowing in the circuit is due to the positive as well as negative charges such that total charge becomes:

$Q=(Na^++Cl^-)e$

$Q=(2.68\times 10^{16}+3.92\times 10^{16})(1.6\times 10^{-19})$

Q = 0.01056 C

The current is given by :

$I=\dfrac{Q}{t}$

$I=\dfrac{0.01056}{1}=10.56\ mA$

So, the current passing between the electrodes is 10.56 mA.

(b) The direction of electric current is towards negative electrodes.

8 0

3 years ago

Read 2 more answers

Why can you see your own face in a mirror?

Semmy [17]

He light will reflect off the mirror in a more orderly way than it reflects off your clothes. We call that specular reflection—it's the opposite to diffuse reflection. How does the mirror reflect light? The silver atoms behind the glass absorb the photons of incoming light energy and become excited.

5 0

3 years ago