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Tju [1.3M]
3 years ago
15

How do you make an electromagnet

Physics
2 answers:
Ivan3 years ago
7 0

Putting a piece of iron or steel inside the coil makes the magnet strong enough to attract objects. The strength of an electromagnet can be increased by increasing the number of loops of wire around the iron core and by increasing the current or voltage.
zzz [600]3 years ago
5 0

Answer:

The correct answer is D. wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

Explanation:

You might be interested in
This happens because the.....particles are most likely to escape from the liquid, causing the temperature of the liquid to.....
GuDViN [60]

Answer:Boiling

Explanation: If a liquid is heated the particles are given more energy and move faster and faster expanding the liquid. The most energetic particles at the surface escape from the surface of the liquid as a vapour as it gets warmer.

5 0
2 years ago
How much force is required to accelerate a 12 kg mass at m 5 m/s
vivado [14]

Answer:

60N

Explanation:

force = mass * acceleration

force = 12 * 5

force =60N

7 0
3 years ago
A sprinter is advised to reduced his speed slowly after completing his race.why
VARVARA [1.3K]

<span>The sprinter is advised to reduce his speed slowly after completing the race because of the power that is needed when the stoppage is down in a faster manner could be very great. This would translate to the great usage in gasoline. Also, the inertia of the vehicle is quiet high so it is hard to stop it very suddenly. </span>

5 0
3 years ago
Two students are sitting 1.50 m apart. One student has a mass of 70.0 kg and the other has a mass of 52.0 kg. What is the gravit
algol [13]

Answer:

The gravitational force between them is 1.079\times10^{-7}\ N.

Explanation:

Given that,

Distance = 1.50 m

Mass of one student = 70.0 kg

Mass of other student = 52.0 kg

We need to calculate the gravitational force

Using formula of gravitational force

F=\dfrac{Gm_{1}m_{2}}{r^2}

Where, m₁ = mass of one student

m₂ = mass of other studen

r = distance between them

Put the value into the formula

F=\dfrac{6.67\times10^{-11}\times70.0\times52.0}{1.50^2}

F=1.079\times10^{-7}\ N

Hence, The gravitational force between them is 1.079\times10^{-7}\ N.

5 0
3 years ago
HELP PLEASE !!
Umnica [9.8K]
If a car crashes into another car like this, the wreck should go nowhere. Besides this being an unrealistic question, the physics of it would look like this:

Momentum before and after the collision is conserved.

Momentum before the collision:
p = m * v = 50000kg * 24m/s + 55000kg * 0m/s = 50000kg * 24m/s
Momentum after the collision:
p = m * v = (50000kg + 55000kg) * v

Setting both momenta equal:
50000kg * 24m/s = (50000kg + 55000kg) * v

Solving for the velocity v:
v = 50000kg * 24m/s/(50000kg + 55000kg) = 11,43m/s

3 0
3 years ago
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