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3 years ago

Which of the following is a nonferromagnetic material? (a) aluminum (b) iron (c) cobalt (d) gadolinium

Physics

1 answer:

ivolga24 [154]3 years ago

5 0

Answer:

Explanation:

Iron and gadlinium are both very easily made into magnetic substances. Cobalt is also capable of being magnetized. Aluminum, put in an alloy, can make a magnetic substance, but

Aluminum by itself is not able to be magnetized.

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The average distance from Earth to the Moon is 384,000 km. How many days would it take, traveling at 800 km/h (the typical speed

Gala2k [10]

Answer:

20 days, 480 hours

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2 years ago

PS Final Exam

tatuchka [14]

Answer:

rolling friction

Explanation:

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3 years ago

What is the state of y when y = k/x, x is halved.

tangare [24]

Answer:

y becomes doubled.

Explanation:

If;

y = $\frac{k}{x}$

what is the state of y when x is halved;

the given expression is an inverse relationship. When y increases, x is supposed to decrease and vice versa.

if x is halved; x = $\frac{x}{2}$

$\frac{k}{\frac{x}{2} }$ = $\frac{2k}{x}$

Now compare :

$\frac{k}{x}$ : $\frac{2k}{x}$

we see that y becomes doubled

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3 years ago

Although the Causes of Lunar Phases video is very useful for learning about phases of the Moon, it is inaccurate in some ways. W

lbvjy [14]

Answer:

In animations, usually the sizes of the objects are does not appear to be right because they are made to show the basic features and what's generally happening in the above mentioned case. These inaccuracies are consciously made for the better understanding of the audience. So following are the inaccuracies,

B.The astronaut is too big compared to the moon.

D.The moon is too big compared to its orbit.

F.The moon is too big compared to earth.

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3 years ago

Differentiate can you help me plzzzzzzz

Schach [20]

Explanation:

Acceleration and the other term are the same physical phenomenon - just with opposite affects. Acceleration increases velocity, while the other term that begins with the letter "R" reduces.

***(Brainly's language filter is blocking the use of the second term in my answer.)***

Acceleration is defined as the rate of change of the velocity of an object per unit of time...

$a = \frac{dv}{dt}$

Acceleration would be a POSITIVE (+) quantity, while the r-word would be negative (-).

4 0

3 years ago