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2 years ago

What kind of magnets will attract

Physics

2 answers:

enot [183]2 years ago

7 0

Answer:

Magnets are only attracted to special metals. Iron, cobalt and nickel are magnetic. Metals that have iron in them attract magnets well.

Explanation:

from Google

tensa zangetsu [6.8K]2 years ago

5 0

Answer:

Magnets can only attract some metals. These special metals are called ferromagnetic. Magnets are usually made of iron, cobalt, and nickel, which are also the ferromagnetic metals.

Explanation:

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A relationship that benefits one but does not harm or benefit another would be considered

Masja [62]

This relationship is called commensalism.

7 0

3 years ago

Match the technology that uses radio waves to the field in which it is used

Elden [556K]

Answer:

Naturally occurring radio waves are made by lightning or by astronomical objects. Artificially generated radio waves are used for fixed and mobile radio communication, broadcasting, radar and other navigation systems, communications satellites, computer networks and innumerable other applications.

Explanation:

5 0

2 years ago

a cyclist coasting down a 5.0 ◦ incline at a constant speed of 6.0 km/h because of air resistance. If the total mass of the bicy

Dvinal [7]

Answer:

$F_{net}= 85.41\ N$

Explanation:

mass of the bicycle + cyclist = 50 kg

constant speed = 6 km/h

a cyclist coasting down a 5.0° incline

the downward velocity is constant, so net acceleration must be zero

the air drag must be equal to gravitational force downward along the ramp

$F_a = mg sin \theta$

now for upward motion

$F_{net} = mg sin \theta + air\ drag$

$F_{net} = mg sin \theta + mg sin \theta$

$F_{net} = 2 mg sin \theta$

$F_{net} = 2\times 50 \times 9.8 sin 5^0$

$F_{net}= 85.41\ N$

3 0

3 years ago

A building is 512 m high. What must be the minimum water pressure in a pipe at ground level in order to get water out of a tap i

vivado [14]

Answer:

Pressure = 5 x 10⁶ Pa

Explanation:

Given:

Height of building = 512 m

Find:

Pressure

Computation:

P2 = P1+dgh

P2 = 1 + (1000)(9.8)(512)

P2 = 51.2 atm

Pressure = 5 x 10⁶ Pa

6 0

3 years ago

[30 POINTS] An automobile steering wheel is shown. The ideal mechanical advantage of this wheel and axle = _____ .

mamaluj [8]

Rw/Ra = MA

18cm/2cm= MA

MA = 9

This means that Fi is 1/9 of the force applied to the axil. The distance travelled by Rw is 9 times more than Ri is that you move 9 times more when turning the wheel using Rw.

Put more simply

Rw/Ra = Fa/Fw

Rw = Radius of the wheel
Ra = Radius of the axil
Fa = Force delivered on the axil
Fw = Force delivered by the wheel

7 0

2 years ago