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3 years ago

List five uses of electromagnets identified in the article. Made-to-Order Magnets.

Physics

2 answers:

jolli1 [7]3 years ago

7 0

Answer:

Electromagnets are used in toasters , doorbells, radio speakers, vacuum cleaners, computers, and cars.

deff fn [24]3 years ago

4 0

Answer:toasters, doorbells, radio speakers, vacuum cleaners, computers, cars

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Match the chemical formula to the correct name.

11Alexandr11 [23.1K]

Co carbon monoxide
sorry friend i don't know other ones

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3 years ago

A race car moves along a circular track at a speed of 0.512 m/s. If the car's centripetal acceleration is 15.4 m/s2, what is the

tiny-mole [99]

Answer:

The radius is $r = 0.0170 \ m$

Explanation:

From the question we are told that

The speed at which the race car moves is $v = 0.512 \ m/s$

The centripetal acceleration is $a _r = 15.4 \ m/s$

Generally the centripetal acceleration is mathematically represented as

$a_r = \frac{v^2 }{r}$

=> $15.4 = \frac{0.512^2 }{ r}$

=> $r = 0.0170 \ m$

6 0

3 years ago

We wish to obtain a equal sized inverted image of a candel flame on a screen kept at a distance of 4m from the candle flame a) n

soldier1979 [14.2K]

A) To obtain an inverted image of an object of same size a convex lens is used.

In this question we have given

Distance between candle flame and screen=4

it means distance between candle flame and lens +distance between lens and screen =4m

u+v= 4m

u= v

therefore, 2u= 4m

or, u=-2m ( u is taken negative because it lies on left side of the lens)

and v=2m

we have to find the focal length of convex lens

$\frac{1}{f} = \frac{1}{v} - \frac{1}{u}$ $\frac{1}{f} = \frac{1}{2} - ( - \frac{1}{2} ) \\ \frac{1}{f} = \frac{1}{1}\\ f = 1m$

Hence, Focal length of the lens is 1m

and lens should be placed at a distance of 2m from the flame

4 0

3 years ago

Where in the world does average daily temperature exceed the annual temperature range?

padilas [110]

The average daily annual temperature range is exceeded in places such as deserts. Deserts tend to be hotter due to the lack of water contained within them. This means that all of the sun's thermal radiation heats up the ground and air. These factors cause deserts to have above average temperatures.

6 0

3 years ago

a plane is flying due east in still air at 395 km/h. suddenly, the plane is hit by wind blowing at 55km/h toward the west. what

Sphinxa [80]

Let's be clear: The plane's "395 km/hr" is speed relative to the
air, and the wind's "55 km/hr" is speed relative to the ground.

Before the wind hits, the plane moves east at 395 km/hr relative
to both the air AND the ground.

After the wind hits, the plane still maintains the same air-speed.
That is, its velocity relative to the air is still 395 km/hr east.
But the wind vector is added to the air-speed vector, and the
plane's velocity <span>relative to the ground drops to 340 km/hr east</span>.

6 0

4 years ago