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3 years ago

Why are most objects not magnetic?

Physics

2 answers:

Vedmedyk [2.9K]3 years ago

6 0

Because there’s like no metal stuff idk

maksim [4K]3 years ago

6 0

Answer:if the magnetic fields of all those atoms are randomly oriented then they would cancel each other out and the material would have no magnetic field

Explanation:

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Estimate (a) the maximum, and (b) the minimum thermal conductivity values (in W/m-K) for a cermet that contains 83 vol% carbide

velikii [3]

Answer:

k_max = 31.82 w/mk

k_min = 17.70 w/mk

Explanation:

a) the maximum thermal conductivity is given as

$k_{max} = k_m*v_m + k_p*v_p$

where k_m is thermal conductvitiy of metal

k_p is thermal conductvitiy of carbide

v_m = proportion of metal in the cement = 0.17

v_p = proportion of carbide in the cement = 0.83

= 66*0.17 + 28*0.83

k_max = 31.82 w/mk

b) the minimum thermal conductivity is given as

$k_{min} = \frac{k_{carbide}* k_{metal}}{k_{metal} v_{carbide} +k_{metal} v_{carbide}}$

= \frac{28+66}{28*0.17 +66*0.83}

k_min = 17.70 w/mk

7 0

3 years ago

A coin falls off a table and is traveling to the ground. Which claim about the forces acting on the coin must be true?

pishuonlain [190]

A) it has a net force because we know that it’s going down in a direction, so there is no force being cancelled out.

5 0

3 years ago

Read 2 more answers

Which is the best aerobic exercise plan?

Arisa [49]

Answer:

Running or Jogging

Running and jogging are both great options for aerobic conditioning. Whether you run at the gym or outside, you are in control of setting the intensity of your workout. When aiming to build muscle mass, you can add more resistance or jog at an incline, along with increasing your speed.

Explanation:

6 0

4 years ago

Read 2 more answers

If the relative humidity is 50 percent and the air temperature is 35°C, will the dew point be reached if the temperature falls t

zzz [600]

The correct answer is no, the dew point will not be reached. The dew point would also fall with the temperature, but at a lesser degree of decline.

7 0

4 years ago

For a galvanic cell to generate an electric current flowing from anode to cathode, what must be true

photoshop1234 [79]

Complete question:

For a galvanic cell to generate an electric current flowing from anode to cathode, what must be true?

(a) Electrons flow from the anode to the cathode

(b) Electrons flow from the more negatively charged electrode to the more positively charged electrode

(d) All of the above are true.

Answer:

(d) All of the above are true.

Explanation:

A galvanic or Voltaic cell is a primary type of electrochemical cell that is used to generate electrical energy from the chemical reactions that take place in it.

It consists of a positive electrode (cathode) and a negative electrode (anode) for the movement of charges.

(a) Electrons flow from the anode to the cathode. TRUE

Anode is the negative electrode and for electron current, electrons flow from negative electrode to positive electrode.

(b) Electrons flow from the more negatively charged electrode to the more positively charged electrode. TRUE

Based on electron current flow.

The driving force of the electron flow is the potential difference. Electrons must flow from higher potential to lower potential.

All the options are correct, so we select option "D"

8 0

3 years ago