All categories

2 years ago

Jonah finds a rusty nail outside. The nail is an example of _____.

Physics

2 answers:

Aleonysh [2.5K]2 years ago

7 0

Answer: Option (A) is the correct answer.

Explanation:

When metal is corroded due to moist air then this process is known as rusting of iron.

When a nail rusts then it represents that metal has turned into metal oxide. This means that chemical composition of substance has changed.

Thus, we can conclude that Jonah finds a rusty nail outside. The nail is an example of chemical weathering.

Pani-rosa [81]2 years ago

3 0

I believe the correct answer from the choices listed above is option A. Jonah finds a rusty nail outside. The nail is an example of chemical weathering. Rusting of nail is a result of reaction of iron with water in air. Hope this answers the question. Have a nice day.

You might be interested in

What causes the spiral structural in milky way?

Mrac [35]

The spiral structure of the milky way can be explained by long lived quasi-static density waves, according to the lin-shu hypothesis. Curiously, the waves of higher density gas and stars (seen as spiral arms) appear to remain static as stars move around the galaxy. This explained by assuming that the gravitational disturbances cause by the 'clumping' material in the arms does not affect the gravitational field of the galaxy as whole and is therefore negligible.

source: Astrophysicist

6 0

3 years ago

A box of oranges which weighs 83 N is being pushed across a horizontal floor. As it moves, it is slowing at a constant rate of 0

otez555 [7]

The given question is incomplete. The complete question is as follows.

A box of oranges which weighs 83 N is being pushed across a horizontal floor. As it moves, it is slowing at a constant rate of 0.90 m/s each second. The push force has a horizontal component of 20 N and a vertical component of 25 N downward. Calculate the coefficient of kinetic friction between the box and the floor.

Explanation:

The given data is as follows.

$F_{1}$ = 20 N, $F_{2}$ = 25 N, a = -0.9 $m/s^{2}$

W = 83 N

m = $\frac{83}{9.81}$

= 8.46

Now, we will balance the forces along the y-component as follows.

N = W + $F_{2}$

= 83 + 25 = 108 N

Now, balancing the forces along the x component as follows.

$F_{1} - F_{r}$ = ma

$20 - F_{r} = 8.46 \times (-0.9)$

$F_{r}$ = 7.614 N

Also, we know that relation between force and coefficient of friction is as follows.

$F_{r} = \mu \times N$

$\mu = \frac{F_{r}}{N}$

= $\frac{7.614}{108}$

= 0.0705

Thus, we can conclude that the coefficient of kinetic friction between the box and the floor is 0.0705.

7 0

3 years ago

Read 2 more answers

If you act without reason or sound judgement, people will describe you as __________.

EastWind [94]

Answer:

irrational

Explanation:

8 0

2 years ago

Explain how this happens?

grandymaker [24]

Answer:

When the polythene rod is rubbed with the woolen cloth, static electric charges move from the cloth and into the rod. The rod becomes negatively charged as negative charges move from the cloth and into the rod leaving the cloth positively charged as well.

5 0

3 years ago

A 15-turn circular wire loop with a radius of 3.0 cm is initially in a uniform magnetic field with a strength of 0.5 T. The fiel

lana66690 [7]

To solve this problem it is necessary to apply the definition given in Faraday's law in a solenoid for which it is noted that

$\epsilon = - d\frac{\phi_B}{dt}$