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Anvisha [2.4K]
3 years ago
9

If you were asked to describe metals and magnetism you could say?

Physics
1 answer:
Anettt [7]3 years ago
5 0
Some metals having unpaired electrons contain a strong magnetic response, i.e, they can be magnetized by an external magnetic field.
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HELP NOW PLEASE ANSWER THE QUESTION THE PICTURE IS ATTACHED BELOW
bagirrra123 [75]

Answer:

C

Explanation:

6 0
2 years ago
Quadrilateral A has side lengths 3, 4, 5, and 6. Quadrilateral B is a scaled copy of Quadrilateral A with a scale factor of 2. S
S_A_V [24]

Answer: 6 and 8 would be side lengths because if it has a scale factor of 2 then you multiply the ones on the chart.

Explanation:Go find one

7 0
3 years ago
Which one ? need to know asap
Snezhnost [94]

Answer:

D or A ( I think)

Explanation:

Cause you know how people say the smaller the chips the more the chips its kind of the same with amplitude.

( hope it helps if I am wrong I am sorry)

8 0
3 years ago
A 2.5 kg , 20-cm-diameter turntable rotates at 150 rpm on frictionless bearings. Two 500 g blocks fall from above, hit the turnt
emmainna [20.7K]

The concepts required to solve this problem are those related to the conservation of the angular momentum and the moment of inertia of the disk. We will begin by calculating the moment of inertia of the disc, then the moment of inertia of the disc after the two two blocks hits and sticks to the edges of the turn table. In the end we will apply the conservation theorem.

The radius is given as,

R = \frac{20cm}{2} = 10cm = 0.1m

When a block falls from above and sticks to the turn table, the moment inertia of the turntable increases.

Since two blocks are stick to the turn table, the total final moment of inertia of the turntable is the sum moment of inertias of individual turntable, and two blocks.

I_1 = \frac{1}{2} MR^2

I_1 = \frac{1}{2} (2.5)(0.1)^2

I_1 = 0.0125kg \cdot m^2

The moment of inertia of each block is

I_0 = mR^2

Total moment of inertia of two block is

I_0' = 2mR^2

The final moment of inertia of the turn table is

I_2 = I_1 +I'0

I_2 = I_1 +2mR^2

I_2 = 0.01kg\cdot m^2 + 2(500*10^{-3}kg)(0.1m)^2

I_2 = 0.0225kg\cdot m^2

From the conservation of the angular momentum, the initial angular momentum of the system is equal to final angular momentum of the system,

Rearrange the equation we have that

I_1\omega_2 = I_2\omega_2

\omega_2 = \frac{I_1\omega_2}{I_2}

\omega_2 = \frac{0.01*150rpm}{0.0225}

\omega_2 = 66.67rpm

The magnitude of the turntable's angular velocity is 66.67rpm

3 0
3 years ago
The Hoover Dam produces electricity which powers parts of Nevada and California. It is made up of 17 generators, each of which p
Crank
Given voltage and current, the power may be calculated by multiplying them. 
                                     P = V x I
Substituting the given values above,
                                     P = (1.60 x 10^4) x (7.40 x 10^3)
The numerical value of the operation above is 118400000 watts. Thus, the answer is letter C. 
6 0
3 years ago
Read 2 more answers
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