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Vesna [10]
3 years ago
9

A solenoid with a ferromagnetic core is

Physics
2 answers:
lora16 [44]3 years ago
7 0
A solenoid with a ferromagnetic core is called an electromagnet
Ivenika [448]3 years ago
4 0
<span>A coil of current - carrying wire that produces a magnetic field is called a solenoid. An ? is a solenoid with a ferromagnetic core. ?, a device that uses a solenoid to measure small amounts of current. An ? motor is a device that uses an electromagnet to turn an axle.</span>
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What energy changes take place in a glowing electric bulb​
ehidna [41]

Answer:

electrical energy change into heat and light energy.

8 0
3 years ago
For the scenarios in which total internal reflection is possible, rank the scenarios on the basis of the critical angle, the ang
likoan [24]

Answer:

Explanation:

For critical angle C  the relation is

SinC = 1 / μ where μ is refractive index of denser medium with respect to rarer medium .

In case of A , refractive index of denser medium with respect to rarer medium .is equal to 1.33 / 1 = 1.33

In case of B , refractive index of denser medium with respect to rarer medium .is equal to 2.42 / 1 = 2.42

In case of C , refractive index of denser medium with respect to rarer medium .is equal to 2.42 / 1.33 = 1.82

In case of D , refractive index of denser medium with respect to rarer medium .is equal to 1.50 / 1.33 = 1.127

In case of D , refractive index is lowest , critical angle will be highest .

In case of B , refractive index of denser medium with respect to rarer medium .is highest so critical angle will be lowest.

Ranking from largest to smallest

D > A >C >B .

3 0
3 years ago
This map shows the Mid-Atlantic Ridge, which spreads approximately 2.5 cm/year. What is the rate of the spread in m/month?
Karo-lina-s [1.5K]
  2.5 cm                 1 meter                  1 Year
_______       x     ________      x     ________        = 0.002 m/month
  Year                     100 cm                12 mo.s
3 0
3 years ago
Read 2 more answers
In an arcade game a 0.135 kg disk is shot across a frictionless horizontal surface by compressing it against a spring and releas
ioda

Answer:

v=2.42m/s

Explanation:

We use the energy conservation theorem in order to solve the problem. The energy when the spring is compressed is equal at the energy when the disk leaves the spring:

E_{initial}=E{final}\\E_{k-initial}+E_{p-initial}=E_{k-final}+E_{p-final}\\0+\frac{1}{2}kx^2=\frac{1}{2}mv^2+0

At the beginning the initial energy is totally potential, energy linked to the compressed spring. At the end the energy is totally kinetics

We solve the equation in order to find the speed.

k=162 N/m

x=7 cm=0.07m

m=0.135 kg

v=x*\sqrt{k/m}=0.07*\sqrt{162/0.135}=2.42m/s

6 0
3 years ago
Your mother asks you to carry a load of wood to the fireplace and lower it to the hearth. In doing this you have used your arms
Evgesh-ka [11]

Answer: The correct answer is the weight of the wood.

Explanation:

Hope this helps

8 0
3 years ago
Read 2 more answers
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